I have a Brompton that I am very happy with. (I'm ~225, it's rated to 240.) 16 inch wheels, and a fairly upright position -- it's not a fast bike, but it is comfortable. The handlebar stem is a little springy, especially since I have the butterfly bars, but it's not a big deal. Folded size was important to me, as I use it on a multi-modal commute; weight was less so as long as I could lift it.