Some of my past catch dogs.

There are good and bad ones in every size and pros and cons to every size. My preference is the bigger catch dogs. I like the leggy linebacker type. I just heard a story a couple days ago about a big boar that that had a bulldog on each ear and he ran off with them holding on. They didn't get the hog. I have also had too many dogs cut after the catch because the smaller catch dog just couldn't get the leverage needed. If you run real rough dogs it doesn't seem to matter as much because everything is getting ahold. Like with my Raylynn gyp though, she will bite to stop a hog, but as soon as the hog is caught and she can see you, she's no longer a help to the catch dog because she is gone to the next hog. Hunting solo is another time that the bigger type are more beneficial to me. Naturally you can't handle as many dogs by yourself so the catch dog better be able to anchor by itself because it is gonna have less help. Just my opinion of course.