I own ROTS on PS2 and originally was entertained by it on the first two or three play throughs, but really... it is a pretty crappy game overall. I really only enjoyed the level were you raid the Jedi Temple as Anakin, just because it is somewhat challenging (not saying much) and you get to slaughter idiot Jedi fucks. Nonetheless, it was a total waste of $50
LEGO Star Wars on the other hand, was a pretty fun game. Yes it was designed to be played by young children and is basically a novelty game to anyone above the age of 8... but it is very entertaining nevertheless. It was worth it IMHO, besides the first scene with Jar Jar actually put him in a likeable, non-irratating light