Personally, I think that he'll take a beat down at first, but honestly, these guys don't have anything in their arsenal to put OS down for good. OS will just keep coming back and probably end up picking them off 1 by 1. Remember, it took a "UNIVERSAL SPIRIT BOMB" to take him out and none off this team is capable of such an attack. Omega Shenron for the eventual win.
Actually, Hatchiyack might be amongst the 1st to go. It took all their fieballs combined to take him out, but that'll be equivalent to a simple blast from OS. Super 17 is their best chance and might outlast the rest, but will eventually fall just like the others.
You are aware that there are 2 different endings to the OVA's, right? The original ending is how I mentioned, where Goku, Gohan, Trunks & Vegeta all throw their specialty fireball all at once and kill him. The other ending has Goku doing a Genki Dama and saving Vegeta's ass.
When is it ever maentioned that Hatchiyack in base form was 10x stronger then Broly? I own every single movie & episode of DB, DBZ & DBGT and that also includes the OVA's and I never recall hearing that. Besides, if he in fact IS really that strong, then why even bother putting Broly in there? His transformation amped him up, granted, but the fact is, all Saiyans were still on level 1 SSJ. They may have got their ass handed to them, but Broly did the same thing, being way outnumbered and still dominated. If Hatchiyack was really as strong as you say, they'd have to go at least SSJ2 or SSJ3.
WTF did u just say are u kiding dude Aprils fools is not until 13 more days dude Broly could never pawn OS even if he had his whole lifetime 2 prepare shows how overrated Broly is.
Which proves my point. They couldn't go SSJ2 or 3 at the time, so if Hatchiyack was truly 10x stronger than Broly like you claim, there's no way in hell they'd be able to stand a chance against a foe like that...at least not at THAT time. It took SSJ2 Gohan to put Cell & Bojack away and Hatchiyack got dealt with by the likes of SSJ1. Don't get me wrong, Hatchiyack was a tough opponent, but Omega Shenron would pretty much wipe his arse with Hatchiyack.
Actually, I'm gonna have to agree with DanteIsCool on this one. People tend to forget the fact that Broly's has never received any "real" training other then what was shown to him by his father and personal experience destroying galaxies, shows us the kind of potential he has. I wouldn't go as far as to call Broly overrated. There's always the "what if" factor where if he was to have the same training as Goku, he'd be WAY beyond even Goku. Being the Legendary Super Saiyajin, all the power he would of accumilated over the years, had he lived, if Omega Shenron stepped to Broly, he'd probably get stomped.
Not saying this is canon or anything, but if you've played DBZ Budokai 3, on the intro you see Broly & Gogeta going heads. If Broly is strong enough to hang with Gogeta, you know Broly's got to be out of hand. Again, this does not count as proof, I'm just saying...