DISCLAIMER: Half credit goes to me, half goes to Blizzard. Most of these tips are original. THis is thoroughly based off of my own experience. This guide was originally written some year and a half ago, so if I fail to name added abilities, insert them where needed.
So you are a warrior, rushing into battle with adrenaline running through your veins...some people cal you barbarian, cannibal! But really, is it any more civilized to destroy people's minds with a fireball? Or to sneak around like a thief? Become the ultimate killing machine with this guide.
I. WARRIOR
Like usual Class vs Class battles, this is an extremely simple battle on who has more armor and better weapons (skill is an extremely small factor; I'll leave that up to you). you'll want something to stun them first. It is ABSOLUTELY IMPERATIVE that you are the one first to charge. If that fails, disarm the warrior and a Demoralizing Shout. You'll want to keep them snared and engaged.
II.WARLOCK
Since most of my characters are undead, Warlocks are a piece of cake. For any other race, however, they will be your toughest battle. Try an Intimidatin Shout as soon as you see him casting a shadow spell. Recklessness is your best weapon here. AS soon as he gets out of the daze effect, wait for him to start casting Fear, then use a Pummel. You might need to use hamstring if he flees, but you'll kill him long before that.
III.SHAMAN
You'll start to feel a growing hatred for shamans, or their totems, or both. Be sure you have some health potions, because if the shaman lays down multiple totems, you'll be caught in a trap of death. So as son as you charge, activate Hamstring. If you see him casting a spell of any kind, use pummel. If he lands an Earthbind totem, try ti hamstring again. Follow up with a combination of rage attacks, such as Heroic Strike, Cleave, or Slam. They will fall as easily as any other healer.
IV.ROGUE
The first thing you want to attack Rogues with is Rend. If they stealth, the DOT will break it. Hamstring them, and switch to defensive stance long enough to do disarm, and switch back. Keep them engaged and snared at all times.
V.PRIEST
E-A-S-Y. You might want an Intimidating Shout just to give you an 8 second opening. If you have it, Mortal Strike can be used to end the battle quickly. They'll go down as easily as any healer.
VI.PALADIN
Paladins follow a usual dictation: Warrior hamstrings, Paladin sees hes losing, turns on Shield and heals. Shield wears off and Paladin fights more. Another Invulnerability spell, heal, still losing, Paladin dies. Pummel when he's using a holy spell to cut out that line, and that will end that.
VII.MAGE
Mages can be your hardest battle. They can keep you snared or rooted for a lengthy amount of time. Watch the timer closely, and make a dash for the mage after it wears off. Try to pummel them while they are using an ARcane or Frost spell; this eliminates most of their escape and snare spells. Surviving the first line of spells while rooted is the hardest part; if you can survive that, you can win. You might need potions, as well.
VIIII.HUNTER
First off, hamstring the pet. THat takes it out of the picture for 15 seconds. If the Hunter is using Aspect of the Cheetah, hit him with a ranged attack. Continue Hamstringing the pet, or, if you have the time, kill it altogether. Aside from that, you can make short work of Hunters.
IX.DRUID
Easiest class to beat upon. Caster? No problem! Charge, pummel, hamstring. Bear form? No problem! Charge, rend, other skills. Cat form? No problem! Charge, hamstring, rend.
OTHER TIPS
A. You'll be spending most of your money on keeping up to date on equipment. A warrior's survival depends on his stuff.
B.Taunt, Mocking blow, and Challenging Shout are your companions' saviors. BE sure to use them often to draw the pressure away.
C. Be a mercenary! This has worked out for me. Find someone about your level or below who is asking for help. Ask for a small fee (e.g. 5 s, 6 s, etc.) and help them out. Of course, this can't be too profitable, but I made a lot from helping out peeps.
Please enjoy the guide, and leave feedback!
CHEERS!
~THeUltimateUndead