Haha I was in the competition but I realized that some people are total back stabbers when they are greedy for something. ( not you Borg you rocked that competition ). My best advice for these competitions is...
1) block every player in the competition clan except for the host and his helpers
2) DO NOT group anyone. Lol i learned that the hard way when my level 20+ finally died when helping someone because they decided to log out and leave me to get whooped by Hagvar and his gang.
3) do not talk to anyone
4) save up your gold
5) keep a time check ( most competitons are timed )
6) don't attack enemies when they have a crowd/group ( obvious enough, don't kill a bunch at once)
7) don't waste time interacting with people outside of the competition
8) don't enter yourself into the competition if your main is a level 30 lol
9) do the main quest line. It will provide you with a large amount of XP for quick leveling etc.
10) don't forget, its only a game
HINT: if you notice, most of the tips advice you keep yourself isolated. This is an important factor if you goal is to win