In our group, any melee character (ftr, brb, rgr, pal, marshall, rogue) will eventually take power attack. The highly melee focused characters grab it early, the secondary melee types grab it late, but they all take it. Even most of our archers take it.
Empower and Extend are the most common metamagics (Extend being the primary one among clerics who don't use divine metamagic). Craft Wondrous is taken by virtually every full caster. Barbarians take extra rage. Fighters do tend to use the weapon focus/spec feat chain. Divine Spell Power is popular among clerics.
Elusive target is a favorite among light fighter types.
Empower and Extend are the most common metamagics (Extend being the primary one among clerics who don't use divine metamagic). Craft Wondrous is taken by virtually every full caster. Barbarians take extra rage. Fighters do tend to use the weapon focus/spec feat chain. Divine Spell Power is popular among clerics.
Elusive target is a favorite among light fighter types.