Weren't both KoTOR and ME2 developed by Bioware? I don't see a huge difference in the battle systems, since you do pause the game in ME2 when you tell your team what attacks to perform. You don't queue up attacks like in KoTOR however.
Still, the similarities between the two are fairly evident. I imagine any RPG will be similar but ME2 just feels too much like KoTOR without lightsabers.
I'm playing Bioshock2 now and it's pretty cool, though it's more like Bioshock 1.5. Not much has advanced or changed.