Surf on the Atlantic side can get some punch to it, especially in hurricane season. Personally, I'd go with a Dom since it is so versatile. Perhaps the P'Nator will grovel a bit better, but the Dom will cover a wider range of waves - at least that is what I suspect. I am 30-40lbs heavier than you, (about the same size as Fritzcat) and when I hoisted a 6'6" Dom it felt a bit like an aircraft carrier to me. Tons of foam hidden away in those things. I'd look to a either a 5'10" or 6'0" Dom, and certainly no bigger than a 6'2".
If you are only interested in a small wave board, then go P'Nator. When the waves are smaller, the flatter rocker helps a ton.