I take the E46 M3...I'd even take an E36. This isn't too much of a tough call for me...I really just don't find Porsche's appealing. I respect their performance, but I just don't find them attractive in looks, or anything really.
The M3 is incredible! Every time I read something about it I just get more and more impressed. I hear it has some understeer, but that's tolerable.