He's much more effective than Davion. He's going to be way better defensively than Davion. His offense is really inconsistent though.
McLaughlin had a 1.0 VORP last year. For comparison, only Sabonis, Fox and Monk had a VORP over 1.
Davion had a -0.4, which is really bad and last place on the team for the 3rd year in a row.