Apparently, yes. I've seen Youtube videos of Vader fighting Yoda, for example.
And aren't there still empty boxes in the Star Wars row even when both versions get their missing Yoda/Vader?
I've spent a good amount of time with both versions now and they're damn near identical, and both great. I think the PS3 version looks a little more aliased, but no matter which version you have, you can be happy.
I'm surprisingly pleased by how well the 360 game performs with the D-pad. It's worlds better than the original Xbox controllers. The PS3 D-pad still gets the nod, but if you have to do any maneuvering with the analog control, the 360 stick actually feels better because there's less "dead zone."
OK, it's early Sunday morning and I just got in. I'll stop blathering now, lol.