I like Crank Bros. Got Candys on the road bike, Mallets on the hybrid.

Most will fall once or twice before it becomes second nature to unclip. I did. I also got blown the wrong way by a wind gust one time. How you fall can be the difference between just getting embarassed and spraining/breaking your wrist. You have to resist the temptation to stick your hand out to break the fall. When I taught karate, falling correctly was a part of the training for beginners.

When I let my 18-year old son start my hybrid, I took him to a local park and had him ride on the grass awhile to practice clipping/unclipping. I also had him stop a few times w/o unclipping to get him to train himself to hold onto the handlebars and NOT put out his hand to brace. First time, he put the hand out. Second time, he started to put it out, then pulled it back. Third time, he held on and let the left side of his body absorb the impact. I'm hoping that, if he does now forget to unclip and falls on the pavement, he can do so properly and avoid serious injury.