I’m 6’ 3” and I have a few off the 2 leg, wide version. My brothers are 6’6” and 6’7” and exceed the weight limit. They never complained when using my cots on Hells Canyon and they never broke either.
I had difficulty deciding which model to buy too when I was about to buy my first. I finally went with the 2 leg version because one of the big advantages of using cots on rivers is sleeping on uneven ground. I have set my cots up on rocky river banks, you have to move some rocks around to get the 2 legs level but it’s doable. Another common scenario is setting the cot up on a slope. I add some rocks under the downhill leg until the cot is level. Each leg on the cot has two feet that touch the ground, so usually it’s a matter of leveling out 2-3 feet to get the cot level. If you have a 3 legged roll a cot, now you have to level 4-5 feet to get your cot level. That’s a lot more work.