Star Trek by a mile. After the horrible Shatner, they did quite well.
Star Wars had the little dancing bears in Ep. VI, then the unforgiveable "Jar Jar Binks" and "Watto"...and the awful casting of Liam Neeson, Ewan McGregor, and Samuel L. Jackson.
I'll deal with Marina Sirtis' & Kate Mulgrew's egos over the sins of Star Wars any day.