I am so very torn between all three of these now. The hipster looks wider than the flip ramp, but I am not sure about the curves. The wedge ramp looks more versatile but not as comfy and it's more expensive.
I have thick hips and back problems, but my main concern is which one to choose for different positions. HELP! I'm ordering soon since they are giving 25% off (just in time too, I have been saving up for this for a while).