If you care about bling bling, get 380/380. Otherwise, 365/345 or 380/345 will work just fine. If you look at the rotor weights, 380 and 365 fronts are basically the same. And 365 has less rotating inertia...
2011 E92 M3 DCT
1991 Spec Miata
2008 E92 M3 DCT - KW Competition 2-way / Brembo 365 BBK / OMP ARS racing seats / rear seats delete / GT4 aero / AiM EVO4 data logger / SmartyCam racing camera
2008 E92 M3 6MT
2008 E92 335xi