If you went with a 2 door civic, I'd probably get the SI version (it does help that I own one), just for the extra HP and 6 speed. Also adding aftermarket audio gear isn't difficult, just get the Navi Climate Control bezel, that is a double DIN opening, just pop in a Head Unit, and a blank for holding CD's and you are off to the races. But I think it will all come down to personal choice after driving the 2-3 choices that you have.