Hatch. The fact that the sedan's tailpipe is hidden turns me off.
Sorry. Just me.
On the positive side, it has lower Cd (more MPG), and is lighter by 20lb.
The hatch is more expensive mainly due to the rear wiper (heard about this from a Mazda representative).
I'm not normally a white car fan, but while I was at the dealer yesterday getting maintenance done on my RX-8 I was looking at a white Mazda3s hatchback and a white Mazda6. They both looked really good in white.