Hello Satan_Junior
There's an index:here
best thing to do is take a look and decide what you think would be most useful. There are quite a few differences between the patrons for Dominators.
For myself I'm taking Mu Mastery. The shield looks good for PvP (slashing,lethal,energy) and the pet looks helpful - it has a heal as well as some attacks, and a pet of it's own. I don't think any one of the Patrons is necessarily the best for PvP, just depends how you play and what you most need.
Thank you very much for your answer 
!
Have a nice week !
Hello english COmmunity ! !
I'm Satan_Junior, french people on the Vigilance Server and CoV fan !
I have a question about patron powers :
My dominator is a fire/fire, for pvp principally.
Which patron powers do you think I should take (I play often pvp) ?
(sorry for my bad english, i'm a little rust)