I had the 12.5" Wild One apes on a 2012 CVO Road Glide. I loved them!!! I am about 5'10" tall and the height and wrist angle was perfect. They were just a little bit too wide for me, but after getting used to them I believe they are the most comfortable bars I've ever ridden.
I just put the 14" Reapers on a 2017 Road King. The reason I went with 14" this time is if you look at how they're measured, it's from the bottom of the riser bar to the grip ends. When I was measuring I felt the 12" would be pretty low. I think the 14" Reapers aren't a lot taller than the 12.5" apes. The wrist angle and pull back are more flat than the apes. The Reapers are about an inch narrower which I really like. I'm getting used to them, and I do like them quite a bit. In my opinion the apes would be more comfortable on a long ride than the Reapers. This Road King is my short hopper, and I really built it for cosmetics over function, so I'm very pleased with the Reapers. The look is fabulous!!!