It really is up to your team. Each players skill impacts the likelihood of victory. With teams of 6 max, 3 inexperienced players could be the downfall of that team. Besides, if you lose you receive an item called a Medallion of Iron. These medallions are useful, because when you lose, say, 3 matches, you get three. Each medallion is turned in when you win, and is almost equal to double experience for winning, so when you lose. So if you get several consecutive losses, and then a win, that win is almost equal to triple exp, or quadruple exp, or (whatever that term for 5 is) exp. You can only hold up to 5 medallions though. But, if you have motes of light, and are willing to spend them, you can buy a buff from the IB vendor which increases IB reputation earned for 12 hours. When i bought mine, i had 3 medallions, i won the next round, and it got be so much more exp than usual. Wearing the shader, emblem, or class item boosts exp gains, if you have access to those.