Generally a vent rib with a bead is faster for clay targets, and steel plates out to around 40-50 yards. A ghost ring is generally a little more precise for longer range targets such as plates past 50 yards.
At your typical match, what type of targets will you be require to shoot the most? (Hint, neither match directors not range officers like the idea of having to walk out to re-set a bunch of 75 yard steel plates that competitors have shoot down.)
Pick the sight that will gain you the most points and speed on the greatest number of targets.