I also prefer a 3 finger model. It shaves a little weight off. The downside is that you only get 3 fingers to pull the bow back with. But, for me, the upside of keeping my pinky free outweighs that. (Why does it matter? I've found that it's rare to find a release aid with a handle that is "swept" just rightto properly fit my hand. That just leads to lack of comfort and even a tendency to "rock" the release aid back in extreme cases.)

Just my $.02