I haven't ridden the HD version of Spider-Man, so I can't say which is better in their current iterations. I will say that during the first scene, they seem similar... But after that Transformers gets WILD and fast (yes I realize we aren't really going faster, hut it really does feel faster). I could never tell where I was in the building in TF and the outdoor scenes really do have a grandiose, expansive sense to them.