I have both an oldtown canoe and kayak. I absolutely love both of them and would not want to make a choice on which is better. For a long day of paddeling in the canoe we found it was tiring on the back so I purchased 2 cane seats (
http://store.oldtowncanoe.com/produc...Cane_Seat_Back ). With a life vest for padding they are very comfortable. The kayak seat and leg posts are also very easy to adjust for size and comfort. My kayak has a large opening so my legs are not constricted under much of the top. My little buddy Murphy (15 LB dog) loves the open space and rides everywhere with me.
Click on the picture and enlarge it to see one cool pup!
I tried many canoes and the only thing I noticed is many of the advanced plastic ones do not have a center keel and are less stable. A fiberglass canoe has a keel that lets it track better and not drift as much in cross winds. Our canoe is only 12 feet long (plenty for a cooler, 2 paddlers, and Murphy.