I would never settle for an auto. My 01 i4 is very spirited for my likes. If u don't mind reving ur engine to redline the i4 is awsome. The 5spd really makes driving this "family sedan" fun. I think the i4 manual is just as fast off the line as a v6 auto but don't take my word for it. I would definately suggest the i4 5spd especially if u have the money to upgrade the suspension. Also if u add an intake and/or an exhaust u will really feel like u are flying LOL.
If u love to drive than don't get an auto!!!!!!!