I think it depends mostly on my mood. I love being bound and more often than not Sir Phryxus will opt for shibari ties. The intricate tying usually involves arms, torso and legs so maybe I'm just used to being thoroughly restrained. I find getting off is never really a problem at that point.
I like to use wrist and ankle restraints with the under-the-bed restraint system. You can still move your hips, but it becomes more of a wriggle than moving.