Ninja vs Wizard
fight lasts roughly 3 seconds if they camp a border, use skill combos, target is silenced and will only be able to do max 300 damage before death.
Ninja vs Geomancer
if the ninja plays it right geomancer wont do anything, fight lasts 5-10 seconds perhaps.
Wizard vs Disciple
50/50 chance for both, though disciple has the ability to heal up more so than take damage. fights last 30 seconds or more depending on range of opponents.
Wizard vs Ranger
any ranger not level 60 will probably have a 50/50 chance against a wizard - after 60 the odds change drasticly to 80/20 due to bowstrength. before 60, 15ish second fight, after 60, 5-10 seconds.
Wizard vs Geomancerways to
Wizard has a 55/45 chance roughly against a geo, depending on how they play. fights last 15 seconds or more.
Wizard vs Dreadkinghts
Wizard has a chance of winning if they DK does not have run toggle on and or is strafeing too much - depending on combo used fights can last from 3 seconds to 30 seconds. (maybe more depending on running distance / time)
Wizard vs Warrior specs besides DK
Fair fights, chance of winning and loosing can be roughly 60/40 favoring wizard, though paladin fights drain mana insanely if played right on pally end.
Wizard vs Wizard lasts roughly 10 seconds
Really the only timer off here is Wizard vs 55+ ninja and a maxed ranger, due to there range and mobility skills.
Bowstrength shortens fights insanely, because they don't have to fully load bow and or draw it back. (all classes - May increase if target has armor.)
Paladins last forever :3