Highest DMG pvp gears are at 30-35. Twinks are best at 10-25 I believe.
Lv40mage gears don't do much difference from lv35 gears. Probably even 30. That's why I stick with lv35.
Being at level35 keeps the bashing from level25s calling you noob for killing them.. Fail. Lol.
Being at level30 gets you jumped by lv30+ hosts games. Fail. Lol.
Lv30 and Lv35 gears are the two main level gears in my opinion. A level25 can never own a level30. Level30 can lose or be tie with to a level35. (depends on fighting style. Like range person kiting a melee. If u get close to a level30 2h Mage, then it's either you spam or you die lmao.)