leveling 20-22
Ive not really found any any or quick way to level 3 characters yet other than ask a friend for boosts. But heres some things that might help you, im going to do my best to stick with this approch for the time being its not exactly fun but its pretty effective.

First of all you need to know what areas are right for your levels and this will depend on the classes your playing i would think. but right now im in redridge and there is a huge level range from 16-24. I find just running about the map killing everything in my way pretty dam good fun, 2 instant dots from each warlock with 3 voids all trying to pick up that mob soon as its first dot goes on works pretty well, you only need to stop to heal your void and get health. the trick should work so that you never leave your voidwalker behind you and you always keep running, targeting mobs infront of you with an /petattack macro should always mean that your void keeps up with you.

Ive now changed my mind about collection quests they are actually alot more fun than grinding x amount of mob quest simply because it keeps you busyer longer. Your grinding mobs getting 34-48xp per kill plus about 1300 when you have handed the quest in and you will probably just be done with all 3 of your toons before you start to get bored of the area.

You really shouldnt need any guides, maybe check wowhead if you need the cords to somthing but you can tell right away what kind of quest your getting from an npc and they are always very simple to find.

your normally done pretty quickly when your selcting to do just certian quests that are grinding ones so you need to know what areas to move onto next, what im doing is go to main town accept the good quests, then just run around the map nukeing till i get to where i want to be.

in loch modan (sp?) there is a quest on the south east you cant miss it just run around the lake from the town anti clockwise you will come to a dig site very good grinding quest there. And when you feel you can handle level 20 elites travel to the noth eastern part of the map and farm ogres there they give you 80-90 xp per kill go down pretty quickly and nothing 3 voidwalkers cant manage, you shouldnt make to many mistakes as the mobs are miles apart from each other. There are also 2 obtainable quests in the town for this area given to you by a dwarf in one of the houses. they give you about 1700 xp each. I consider myself pretty lucky so far i really havent ran into many players on my realm they are all high level so no hassles with fighting people for the same mobs has been really nice.

tip- dont stop, your only down time should be vendoring, everywhere you run you should be killing everything in your wake, and i wouldnt even bother looting that much mobs drop junk. If you have cleared an area of mobs run about some more you can always come back pretty quickly im always finding nicer grinding spots just by exploring when all the mobs are gone.

im looking forward to 2.3 when levels need less xp per level from 20-60 and also quest hand ins will reward more xp. Also with the arena season 1 gear obtainable thru battlegrounds i worked out its somthing like 3.8k honor a day for 2 weeks would get you all 5 parts and from previous experience it wasnt hard getting 5-6k in a day and 10-12k on bg weekends. So this will be a really nice way to get my locks geared up for raiding.