First off, to each their own, but since you're asking.
My preference has always been a coupe, on a vette, since it comes with a removeable targa roof, and you get the best of both worlds.
I always find that convertables are too high maintence, keeping the material in good condition, the mechanical aspect if it breaks, and depending where you live, how often do actually get to drive with the top down, etc.
Whatever you choose, enjoy the ride.