So much fail in this thread I don't know where to start!!
1. If you go W/M, which I do not recommend, you need to chose melee or caster style for your gear build. You can build both but if you split stats you will fail. If you want sustained dps, survivibility and AoE ability for PvE, go for the melee style with STR + STAM and a 2H sword. You will not hit like a girl with a suitabilty tiered weapon.
If you go caster style with STR + INT and a 2H STAFF you will have, imo, the 2nd best burst DPS in the game, a silly amount of damage vs. single targets either in PvE or PvP, insane mana usage (pot, pot, pot, pot, etc.) and absolutley will get killed if you get swarmed by mobs as you have no AoE (root and run for your life but since your mana pot is still cooling down, good luck). I played both styles, built both gear sets, maxxed out all skills at the old lvl cap and played exclusively as a W primary from 0-50 on both sides. 100 levels as W/M - I think I know! Oh, and last nerf to defensive formation was a dagger in the throat to caster style warmages.
2. M/P - You can do a lot of damage. Moreso than a similarly geared M/P. Unfortunatley you have no heals and you will die. If you want to be a Mage, I suggest M/P. Please see my 'Mana Mage' post for more details. People will ask you for a regen or a buff because they have never seen a non- M/P. The elites are fail. I think the intent was to create elites that crit more and do more damage when you crit. it works to a point but the buffs are short, hard to cast (two skills to build rage to then cast buff), underpowered (not enough xtra crit chance), rage based, and not coordinated with each other. The class needs fixing / buffing. But as this game is designed for Mages - endgame M/W > W/M by a long shot.
to sum up here is my advice. If you want a melee class go R/S or R/K Warriors have some mechanics issues that I think will never be fixed. There was one patch in open beta where Rage Gen was essentially unlimited and when playing warrior (melee) style my char was on M/P / EZMODE, but sadly the Q.Qing brought a quick nerf. If you want to be a mage, why fight it there just isn't anything better ATM? Go M/P for reasons explained in many numerous posts.