I drove an Evo IX last weekend. Now that is a fast car. But that is all it is, it is very focused on speed.
The E90 has other qualities. It is the class leader for handling. The materials and finish are outstanding. What other brand offers 8 different factory rim options just for the sedan? Etc, etc.
While the thought of an '07 Shelby GT500 gets the blood pumping, it won't be as well rounded as even base E90 325i.