Post by Magnerz
There isn't one set ret pvp spec which is probably why you have seen a few differnt ones. Arena specs also vary from more general battleground specs for some people.
This would be a template build with 9 points left to customise where you see fit:
http://www.wowhead.com/?talent#sZVGZVfMxrIuGdIbszExamples:
- Some people aim for imp HoJ as shaving 20 seconds off a stun is pretty good for pvp
- Some aim for a build which skips the DoT effect of Righteous Vengence as this can break CC such as sheeps/repentance etc, others take it for higher damage output.
- Some swear by picking up Divine Sacrifice and Divine Guradian as it can add up to some serious damage absorption, especially efective in a 5 man arena i'd imagine
- Some peopel like to snap up divinity for better healing with AoW FoL procs and more healing recieved/given by DS etc.
The specs you've seen shouldn't be very different from each other, all will probably follow the same template, though some may vary slightly.