Gosh I hate to get involved but I just HAVE to set some facts straight.
1. Arena rating is worth more than any statistic involving random BGs. Please never ever say otherwise, for you look like an *****.
2. Rated BG is harder to get carried in than arena. This is also totally incorrect. It is easier to get carried by 9 players in a 10 man rated BG, than it is to get carried by 1 person in a 2v2 arena matchup. This is literally common sense. Again, saying otherwise makes you look like a complete noob that has no clue what he's talking about.
3. WoW pvp is balanced around 3v3. All other PvP formats are mostly for fun. Affliction locks for example are so stupidly dominant in a BG environment, compared to say a BM hunter.
4. The only way you will get better is when you start respecting and learning from players better than you. That full vicious resto shaman that reached 2.3k rating? I assure you, you would never be able to do it. I know I wouldn't either. It's easy to sit there and say its easy to do, but trust me it isn't. That player was obviously excellent, and you should recognize that.
I probably just wasted a whole minute of my life, but I had to set the record straight for you :/
PS: You guys should move this post to the off-topic/spam sub-forum so that there's no need to moderator all this flaming.