I love the full-sleeve + one pec tattoos, especially if the guy is dedicated enough to build the muscles to match. These really balance well on a body and have a stunning effect, especially if the guy man-scapes.
Getting my full sleeve for my right arm designed by my tattoo artist. Should look very cool. Then, I'll work on the rest of my tattoo for my right arm, shoulder, back and chest. That's going to be the tricky part! ;)