I'm super ready for this one. Grabbing the DS version first since I can take it on a roadtrip in a couple weeks (I'm not driving) and just because I'm short otherwise I'd get the Wii version too (will in time.)
Thinking of that earlier post, not really sure why anyone would use 'sexy' to describe graphics, and also considering they're using the same quality videos and visual libraries for all 3 (which is why the HD versions are $50 like the Wii one and not $60) I'm not sure just how more 'sexy' it could get.
I'd say whatever gives you the most fun, and if that happens to be if the Wii does something interesting like the StarWars one did (saber movement) maybe if it does whip play that's your thing.
It took me 35 hours to get all achievements on Lego Star Wars:TCS.
Lego Indiana Jones, however, only took 3 days.
The battle is somewhat meh, I think Indy is harder than SW because you don't get lightsabers nor default projectile weapons (in story mode at least).
The level design is pretty well done, it stays quite true to the film and I liked it.
The achievements. MAN THE ACHIEVEMENTS! They're all quotes from the movie and I loved the concept!
Honestly I think Lego Batman mask is ugly, and there doesn't seem to be a lot of characters compared to SW/IJ. But I guess it's too early to judge Lego Batman, I hope it's full of action because Indy was quite heavy on puzzles compared to SW IMO.