I don't know that you'll find a lot of folks that agree with me if you research it, but i think canoes trump sit-ins, and sit-ins trump sit-ons.
Sit-ons are popular with folks that want their kayak to be a boat. To me they are very expensive hybrids that inherit the worst of both worlds. My Pungo in the pics weighs 40lbs and I can paddle it all day. I can launch it anywhere, and carry a quartered deer or a half dozen dekes in it. It's light, fast, agile, and simple. I love it. Wish they still made them in camo, but now only their "hunting" sit-ons have that color.
I have sold a lot of boats and taken a lot of guys hunting. Almost every time I take a guy in a sit on I end up having to help them load/unload their boat and wait on them to catch up to me paddling.