All depends on what you like. Never played a DE Simpsons, but have played BoP a lot lately.
It's NOTHING like the original pinbot. Pinbot is an open playfield with a lot of standup targets.... Bride of Pinbot is a very short playfield dominated by the two ramps. The head assembly is cool, but takes up a huge amount of space. Great lightshow and sounds, particularly if you get a full metamorphosis of the face. Oh, and it's NOT a DMD game, it's an alphanumeric.
-Hans