I'd say that depends entirel on the type of kayak. I can rock my kayak for all it's worth and would be hard pressed to tip it. My canoe is an entirely different story. Loading up with gear, you can defineately get more gear in the canoe...but for day trips, give me a kayak!!!
Michelle who finds it funny that even in the boating magazines there is a very distinct line drawn between kayakers and canoers...both loyal to their boat of choice. I say, who cares? Get out and have fun!!! :)