As awesome as the mazda6 v6 5 speeds are, I think they are kinda ugly. UNLESS they are black. (But thats just because im racist)
Anyway, the new jetta is pretty hot. Im suprised at how much I like how they look. BUT, its not the kind of car id want to keep for a while. Especially after the warranties run out. So, if you plan on keeping either car for a pretty long time, go with the MazzzzzzDa.