Aug 8th 2009 9:14PM Just like you said, you're new to arena.
Knowledge is going to be your first barrier to getting higher rated. Not only knowing your own class, but every other class as well. Knowing what their abilities are, the cooldowns on those abilities, and the correct counter to that ability. So, reading the forums are good and learning the abilities of other classes on sites like Wowwiki and Wowhead are nice, but also asking about those abilities from those players and dueling them hundreds of times will help in gaining that knowledge first-hand.
Speaking of knowledge, knowing your class in PvE is not the same as knowing your class in PvP, especially Arenas. Arena matches are as different from Battlegrounds as Battlegrounds are as different from PvE. Watching videos of high rated players of the same class is helpful to see what they are doing that you aren't. Also, researching the best specs/gear/gems/enchants for your comp via Arena Junkies and the Armory can help you find out if you are doing all you can to be the best arena player possible.
When you get to a higher level, sub-2000, the some other barriers will end up being, spotting your opponents mistakes and capitalizing on them, i.e. a bad Trinket or early use of a major CD like Pain Suppression/Divine Shield. Also, timing your CC chain on the enemy healer, so they have little/no time to heal in-between CCs.
Lastly, just grind it out. Think of your first experiences in arenas like your first time trying to raid. It takes time to learn all of the ins and outs.
May 24th 2009 6:43PM Cayley may have been a complainer, but Cayley must really know PvP and the classes to do so well with such a really bad comp. If I was Blizz, I'd take more PvP tweaking suggestions from obviously great players such as Cayley, then the masses in general.
In a perfect world, Arenas would be about bringing the player and not the class/spec. Unfortunately, for the game to get to that point, it would be have to be an entirely different game, but until then it's nice to see great players doing well with bad comps.
May 17th 2009 1:03PM How about 3 instances, the side that wins/defends 2+ instances wins WG and has access to VoA and all that. It would change the 150 vs 150 WGs to 50 vs 50. Still pretty big overall and less lag.