If you're getting Oblivion, IMHO, get it for the PC and download a few mods to fix the leveling system. It's the one major thing about the game I find insufferable. Beyond that, it's great. (At least Bethesda has acknowledged this and appears to be changing the system in Skyrim.) Granted, Morrowind's leveling had some issues, too. I have to admit that the series had a unique take on leveling, which is refreshing, but the whole world-levels-with-you that Oblivion specifically did was terribad.