I see in grunt's response he uses the M80 with no sub. How about the others?
I should clarify that I do use a sub, the EP500, for movies and video games but not for music. For games and movies I think a sub is a must. What I do is set the crossover for my M80s at 60 or even 40 rather than the usual 80 that most people use. That way more of the bass still goes to the M80s rather than being redirected to the sub. This it lets me feel the direction the bass is coming from when it comes out of the left/right mains. Having spent a lot of time around things that go boom I think it feels more realistic.
Of your options I would also pick #2 for the same reasons stated above.
