I think that with your first one, the color is just not one a sports team would choose, I understand why you did it, the result just doesn't work. And like everybody said, to much detail, in it too. In sports logos, simplicity is everything. With the second logo I personally don't like it, it's more simplistic, but for me there's just something off about it. I wish the green was more prominent I love that third jersey, and I think that would help it. I personally love the logo for sheffield, it's personally one of the best soccer logos I've seen. I can't see why you didn't go far with that, it's simplistic, great colors. The only criticisms I would give are that, there's to much blank space, and I'd wish you had changed the ball color to blue or white, the brown is a little offsetting with the starkness of everything else in the logo.