Spider-Man and Colossus. Bumblebee in the comics from several years ago did bring a building or something down by pushing two I-beams apart, but I think Spider-Man wins on both speed and agility. Grimlock from the 80s comics was less than Optimus or Megatron (Megatron tossed around all five Dinobots at a time). But the Grimlock from the cartoon, at least from what I heard, could shrug off Megatron's cannon. Then again, the Transformers have always been pretty weak, both in the cartoons and comics. I think team 2 wins.
I think Transformers were always pretty weak...
-Megatron must plug himself into the Hoover Dam to bring down a small cliffside, and Transformers can be killed by water
-The Autobots were injured and repelled by artillery fire from a dozen or so ordinary tanks
-Transformer weapons don't make much for explosions
-In "A Decepticon Raider in King Arthur's Court", Rumble lost a jousting match against an ordinary human
-Several Decepticons were scared away by missiles from an ordinary manmade F-15 and the missiles never even directly connected
-Even though Megatron later disproved him somewhat, Shockwave believed that around 15 Decepticons were no match for a couple dozen ordinary tanks
-Skids (Autobot who turns into a van) was KO'd by driving down a cliff and bumping into a rock, and then again later by an average guy throwing a tire iron into his windshield
-A Cobra pilot operating a modified Seeker stated that he didn't think it could withstand ordinary missiles from regular manmade fighters
-According to Starscream's stat card, he can only reach mach 1.8 (yet is the fastest Decepticon), which is actually slower than a real F-15, which can exceed mach 2
etc, etc, etc
I always got the impression that Transformers were complete wimps. I don't see them putting a fight against a guy as resourceful as Spider-Man and the strongest mutant in the world.