My Hubby likes the boppy. The one with the sun, by far most i have talked to like that one best. The only complaint was the vibration is very very strong!
The first does not bounce at all only vibrates. But, I like how steady it is to the ground.
The last is actually the most expensive. Many people have told me they like it, but no one who owned it has any reports on it much. I think the head support could be better on it, like #2