Since I'm no Nintendo wanker, I'll reveal all the feats and losses of the Brawl characters (via cutscenes) and it'll prove that they're not as uber as they are wanked to be:
Mario
-He was KO'd by a cannon ball from Petey Piranha.
-That laser dodging scene? Those laser weren't even accurate and most of them were hitting the ground.
-He's known for jumping but he couldn't even catch the Ancient Minister who was in the air.
-The angry dash (when Dark Peach is defeated) is toonforce.
Link
-The scene where he pulls out the Master Sword proves he has the Triforce of Courage in Brawl.
-That laser dodging scene? Those laser weren't even accurate and most of them were hitting the ground.
-His Master Sword can through guns, if that means anything.
-A single arrows smoked Dedede's vehicle.
-The angry dash (when Dark Zelda is defeated) is toonforce
Petey Piranha
-He was defeated by Kirby alone.
Kirby
-An Arwing passing by knocked him off the Halberd.
Peach
-An Arwing passing by knocked her off the Halberd.
-She gets turned into a trophy by Bowser. She had enough time to react.
Zelda
-An Arwing passing by knocked her off the Halberd.
-She gets turned into a trophy by Bowser. She had enough time to react.
Arwing
-It's obviously weaker than the ones in Star Fox 64. The Halberd's grappling arm knocked it off the air and it was totaled by a weaker version of Rayquaza.
Donkey Kong
-He's much stronger than in the DK games. A giant punch sent a Goomba and Diddy long distances. He can easily break out of chains. He's also strong enough to bust a wall.
-He had trouble ripping up a ROB but I'll label that PIS.
-He's not agile as he doesn't even try to dodge Bowser's Trophy gun.
Diddy Kong
-His peanut popgun shots are enough to knock away Bullet Bills and knock Primids off a flying platform.
-Was gonna be food for Rayquaza if Fox didn't show up
Pit
-It's obvious he glides and he couldn't even reach Ancient Minister who was up in the air.
-His blades can cut through a trophy gun.
-A single arrow smoked Dedede's vehicle.
Fox
-Fox does things in Brawl that he could never do in Star Fox adventures. He uses gadgets to move extremely fast and reflect projectiles. He's also a pretty good martial artist and can survive long drops.
Rayquaza
-Much weaker than in the Pokemon games (his stat total is higher than Mewtwo's).
-He was defeated by Fox and Diddy. Maybe just Fox alone.
Porky statue
-Is the most powerful enemy in Mother 3 but is much weaker as he is knocked out by a PK Thunder and then destroyed by a PK Flash.
Ness
-I'm sure he's weaker in Brawl but he is very agile and can destroy a stone statue with PK Flash.
Red
-He's just an ordinary human. He does nothing superhuman at all.
Marth
-He's pretty fast, running and swordplay. He shows an impressive fight with Metaknight
Metaknight
-Pretty fast and possibly faster than Marth. Showed an impressive fight with the FE character.
-Has the only real laser dodging feat. This laser is direct and Metaknight barely dodged it and had a burnt wing. It's worth noting that he is one of the fastest characters in the game unlike Mario & Link who are much slower than he is.
-He can fly pretty good. Possibly the best flyer outside of Kirby's own rides.
Ike
-Ike can run fast.
Luigi
-Because of Luigi's Mansion, it made this plumber look bad. It made Luigi a wuss in Brawl and he can barely stand up to a Waddledee (most pathetic enemy in the Kirby games) and easily gets beaten by King Dedede.
Wario
-Gets knocked over by a herd of Waddledee. Wow.
Pikachu
-He got captured by ROBs. If he can't stop a group of robots that can't even survive a drop that ordinary people can survive, you know he ain't uber.
King Dedede
-Falling debris knocks him out. Not completely toon force since he becomes a trophy after that.
-He defeats Bowser by himself.
Bowser
-He can dodge Pit's arrow but he gets beat by King Dedede.
Galleom
-It took Metaknight, Marth, and Ike to defeat him and then later, Lucas and Red (who has all of his Pokemon).
Lucas
Starts out as scared kid but later becomes powerful. His PK Thunder blasted off Galleom's arm. He can't survive falls though since he needed Metaknight to rescue his and Red's ass.
Falco
Possibly Fox's equal. It's worth noting that his Blaster lasers are much faster than the Arwing lasers smashing General Kalilero's argument to pieces. I'd estimate they're at least bullet speed or maybe even faster. Nobody dodges those lasers.
Zero Suit Samus
-Is deadlier than in Zero Mission. Her stun gun and change into a plasma whip and she was able to beat two Power Suit clones with Pika.
Samus
-She's weaker than in the Metroid games. She doesn't run as fast, was getting beat by Ridley, and couldn't rip apart one of the ROBs. She did blow apart of a few of those robots but not in the level that she would defeat enemies in the Metroid games.
Ridley
-Is much weaker since Pikachu can blast it out of the air. In the Metroid series, he survived worse things without getting falling to the ground.
-He can't spit fire at all (not in the cutscenes nor in gameplay).
Pikmin
-They're incredibly weak. A giant ROB could waste an army of them by spinning its torso. Captain Falcon sliding near them also killed them even though he touched none of them.
Captain Falcon
-A single Falcon Punch put the giant ROB out of commission.
Halberd
-Was defeated by the Halberd, proving it's weaker than in Star Fox 64. It's worth noting that the lasers shot by the Great Fox are much slower than the Arwing lasers. Just more proof that General Kaliero's laser argument fails.
Sheik
-She jumps, teleports on top of Fox's Arwing, and smashes the cockpit. No lasers were dodged and there is no speed feat. Fox also had enough time to barrel-roll her off (he does it to lasers) but he was dumb in that scene. She survived the long fall down.
Duon
-It must've been powerful if we need Peach, Sheik, Snake, Fox, Falco, and Lucario at the scene.
Lucario
-He must've been as fast as Metaknight if he was worth a fight.
-He can detect aura to find hidden people and see if they're friend or foe.
Yoshi
-Can run fast
Ganondorf
-He uses no magic at all. How does he control an army of ROBs? A detonator. How does he defeat Bowser? A trophy gun. Yeah he sucks in Brawl.
-To be fair, he empower his melee moves with darkness, fire, and electricity (in gameplay).
Ancient Minister
-Tanked a hail of ROB lasers.
Meta Ridley
-In gameplay, his attacks pale in comparison of what he had in Metroid Prime.
Halberd
-Is more of a warship since I don't remember shooting all those lasers. It did have that Combo Cannon w/ grappling arm in Super Star.
-The grappling arm is strong enough to reel a ship the size of the Great Fox and slam that thing into an ice mountain.
-It took three shots for a Subspace ship to take down the Halberd. The last shot was a direct hit that scrapped Metaknight's ship for good.
Tabuu
-Extremely powerful. He took most of the Brawl characters out in a few seconds. The only way he was beaten was when Sonic made a sneak attack and broke his wings which limited his wave attack.
-He can gather subspaced areas and combine them into a twisted maze.
Everything else is gameplay. I've played Smash Bros Brawl and own it so I know I'm right. If there's any mis-belief, check the Brawl cutscenes yourself or stop lying to yourself.