I have to agree with most of the posters, but I would like to add that the outfitting also plays a huge part of being comfortable in a boat. I am about your size and paddle the WS Recon 83, and love it. It is fast enough, plows through holes, is stable, and it rolls almost effortlessly. My favorite part of it is the outfitting. Although Dagger also has very similar outfitting, the thigh braces on WS make it so nice. That being said, I would say you should look at the Recon, Diesel, or the Dagger Mamba.
None of the boats you mentioned are bad, and my group of ten on Gore yesterday had 6 Jackson Karmas. They all like the Karma! Go with what YOU are comfortable in. Good luck, and have fun!