I wouldn't buy the Accord coupe - I think it looks quite bloated/rounded in the rear, although nowhere near as much as the Solara (which I like from the front).
I'd buy the new Civic Si over the Accord Coupe even with a V6. It's dang cool. Will handle better, probably feels more airy and modern, gets better mileage, and is more youthful.
I think a lot of younger people feel the same way. For the older crowd, might be thinking of going Accord, but the way I see it many of the mid-size cars are redundant as they are.