English dub just had horrendous voices half the time. Grandma Freeza is one thing, but Chris Sabat voiced so many people it seemed like he only did it to make himself unfireable
King Cold, #19 and #16 had some seriously awful voices, although not as bad as the dub lines they spoke.
SSj4 Gogeta, not only because he can one shot kill everyone else in the entire franchise, but because of his awesomeness. He is probably my favorite character tbh.