Aw, hey there.
(& wave Tinuva
I'll add or rather highlight how heavily gear dependent warriors are. Far more than any other class. Most warriors in 2's (95%) go for arp, so not full pvp gear needed/wanted. Thats something in the range of 700 arp. You need things like Deathbringer's Will trinket and some serious ICC25 weapon (well needed so u can get a proper pvp one)
Regarding 2's setups your real viable setups is Warrior/Resto Druid or Warrior/HPally, but be prepaired for some long matches also sometimes. For you its all about pressure (ms, rend!!), hope for some procs & then getting a CC in @ the right time.
As Tinuva said latency is kind of a bitch, even if you have 230-250ms. It affects melee a bit more than range. As a melee you'll see when you get into arena. Out of range crap, 2 slow on reflect, intercept, switching, peeling from your healer etc etc.
From your partners point, slower reaction of root, cyclone, stun, repent etc.
250ms does not seem allot for SA, still you can see a Mana Burn etc. comming, run behind a pillar & on your screen you are behind it already but it still hits you. Same when a warrior charges you. Its the little things that gets more and more important as you go higher.
I think get a pvp warrior (like Tinuva) who you can have a chat to if there is something you have a problem with etc etc. As you know there is quite allot of tips and tricks with a class and I myself find asking someone who has done it easier than being frustrated for ages before I figure it out myself

And of course it it goes without saying, learn the setups you will face in arena and what you need to do against them.
Warriors might sound bit boring for some, but if you talk to people who play them they are allot of fun and thats what its all about is it not?
So GL, all the best and let us know how it goes!