Once I discovered BMW over 25 years ago and bought my first one 20 years ago, I have never looked at another brand for myself. My wife is a Mercedes fan and has a terrific W203. We bypassed the 204 but will look at the 205 when it comes out in 2014.
I have never looked at an Audi, but my cousin has a big, black diesel truck (4WD SUV) one and he LOVES it. According to my cousin, Audi could not have been nicer during the sale and have looked after him with service and parts. He has had the car some years and says it performs beautifully. He is an avid Audi fan.
328i M-Sport, Estoril Blue, Carbon XP 35 Tint, front heated seats, black Dakota, Sports Suspension, Anthracite Headliner, HUD, Pro Nav, Sunroof, hk 600w, Bi-Xenon, 19" 403M wheels, Reversing Camera, DAB+, Xenon, BT Ext Connect. JB4 on Map 2 with Catless DP produces awesome performance in Sport.