User blog comment:BigBrother1984/Borderlands 2 Skill trees/@comment-4103352-20120909121212

Axton has 7 Gamechangers. Phalnax sheild, Gemini, Mag lock, Longbow turret, Nuke, Sorched earth, and Double up. Maya and Zero have extremely powerful gamechangers. (Cloud Kill, Ruin, Res, Execute, Many Must Fall, etc.) They are by no means lacking utility nor lacking power. In Salvador's defense, his ability is based around the quality of loot found. If you seem to find nothing but crap guns, Gunzerking isn't as effective than with excellent weapons. Axton's turret is killable, but in the footage of the game I only have seen it happen a few times. The skill trees are balanced. They wouldn't release a massively overpowered character nor would they release a underpowered character.