I second the ATAK 140! I paddle one, stand in it, sit sideways on it and all. It’s a very stable boat. I’m 5’ 10, weigh 260 and I can move around in it pretty well. Like one of the other gentlemen said in a post earlier, you will find out what you like and what you don’t pretty quick. I love the room, the layout, the maneuverability, tracking and the best is the seat. For me, the worst thing for the ATAK 140 is the weight.
I was recently on the fence about getting my son a new kayak. I came down to Bonafide and Oldtown this time. I personally feel that 14ft is a lot of kayak and if I had it to do over I’d go 12.
Consider your height and weight when thinking about stability. A 5 ft 125lb man can say something is very stable. Put a 6ft 230lb man in the same kayak and things change quite a bit.