Flatter rocker, more speed and sit higher in water, easier to paddle, more rocker, turn tighter, go better in steep as the nose doesn't dig in.
Seriously suggest you look at something like a 6'4 -6'8 Speed Dialler. Flat, but pulled in tail, quad fins, so so much fun. Had one, loved it, and will own another but shorter. I'd say it's the ideal "one board quiver" if such a thing exists.