Rel said:Well, Corwin, your point is well taken but this might be somewhat campaign specific.
For example, I am currently playing a Ranger/Cleric who has Improved Shield Bash as a feat (this is one reason why I've taken a long look at the balance issues involved in this discussion). So anytime I shield bash somebody, I start a Bull Rush and we do an opposed Strength check. If I'm successful and another party member is threatening them, they get an AoO.
BUT, our group only has 3 players. Of the other two, one is a Wizard who avoids melee combat at all costs. The other one is a PsyWarrior. So far, our few combats have always been against multiple opponents and it was rare if ever that both the PsyWarrior and my character were threatening the same opponent. I expect this trend is likely to continue for a while.
There will probably come a day however when the Psy Warrior is threatening some baddie and I shield bash that baddie and knock him back 5 feet and the Psy Warrior will get an AoO. But I still say that doesn't seem unbalanced. After all, I had to invest 2 feats to get that capability and it is only useful in that manner under a limited set of curcumstances. I may well have been better off taking Power Attack/Cleave or Dodge/Mobility or any other set of feats that is more frequently useful or reliable.
Also considering you could have been doing damage and disarm, shield bashing isn't overpowered.
Also remember that straight up bullrushing is a STANDARD action, not an attack action. So there are very few uses for a normal bullrush in combat