What sort of method do you use for levelling multiple alts? Do you follow the same quest chains each time, do you avoid a certain quest section, do you only dungeon, etc?
I typically level with a mixture of questing, gathering, and LFD.
Since Heirlooms debuted, most of my characters have used them. I’ve gotten used to the pace of leveling using Heirlooms, to the extent that leveling without them now feels agonizingly slow. Kaumalea the Underpowered Death Knight doesn’t use Heirlooms, of course, and I’ve decided that Kehontah the Male Tauren Warrior will not use Heirlooms to help him reach level 60, prior to being boosted to 90, either. He’s also not going to do LFD, not even SFK at level 20 for the weapon (a rite of passage for all my other alts). He’ll be finding joy in the journey and perhaps even contributing to the Godmother’s “Those We Leave Behind” project.
To keep myself from getting bored with the leveling process, I try to do something a little different with each alt — or at least, between one alt that I spend a lot of time with and the next alt that I spend a lot of time with. I try to choose zones and questlines that feature the race of my character or a faction that relates to the class of my character. I use LFD to skip over levels that don’t have any zones or quests I want to do.
When I get to Outland, I cherry-pick the questlines that give good-looking clothes or weapons for Transmogrification. This means I end up doing a different set of zones and quests depending upon the armor class of the character.
Going through Northrend as Horde, I usually do some of the Taunka village questlines, then burn through the rest of those levels in LFD. Ever since Kamalia experienced the Wrathgate, I’ve avoided the Forsaken outposts and their quests like, well, the plague (pun intended). I tried to do some of the Alliance side quests in Northrend with Kinevra, but she was in such a hurry to get to 85 that what she did went by in a blur. Now, Kaprikka is in a hurry-hurry to get to 90, so I probably won’t see much of non-LFD Northrend with her, either. One of my other Alliance alts will have to be the one to take it slow through the Alliance story in Northrend — and I would like to play all the way through Storm Peaks again sometime.
I do have a fairly set path for the Cataclysm levels. I play through Mount Hyjal until I’ve completed Aessina’s Miracle, so that if the character ever wants to get something from the Molten Front, they can jump right in. Then I go to Vashj’ir and follow the quest chain until I get to Silver Tide Hollow and open up the Earthen Ring quartermaster. I go to Deepholm just long enough to get to level 83, and I usually follow the Stonehearth questline rather than the skyship questline. Then I go to Uldum and play through the Ramkahen questline. Sometimes I finish it, other times I go to Twilight Highlands as soon as I reach level 84. I’ll do enough of Twilight Highlands to get the portal open. After that, I may continue questing in Twilight Highlands, go back to Uldum, or just gather and LFD my way to 85.
The only things a character must do in Pandaria are get the Grummlepack and open the Vale of Eternal Blossoms. Mages don’t even have to do the latter; they can just wait until they get to level 90 and learn the teleport. I usually do the Tian Monastery in Jade Forest, getting started at Sunsong Ranch, and the Lorewalker Cho/Zouchin Province questline in Kun-Lai Summit (at least until the trolls have been defeated). I’ve only done the Dread Wastes with a few characters; the others have all tried to avoid it.
I’m fond of Archaeology as a speed-leveling tool when I’m really in a hurry to level and don’t have any zones or questlines that I’m particularly interested in playing through. Archaeology provides consistently good XP, plus a little gold on the side, and it’s a good way to occupy myself while I’m sitting in an LFD queue (especially as DPS). Archaeology gets much easier after level 60, when one can fly. Many digsites have very uneven terrain or large obstacles created by ruined structures, and it’s faster and simpler to hop on one’s flying mount and go over an obstacle than to go around on the ground. The digsites at Auchindoun are particularly terrible; the relics can spawn both inside and outside the ring, and trying to navigate around that place on the ground while searching for relics would be a nightmare! I am not excited about trying to do Archaeology on Draenor if it remains a no-fly environment for the whole expansion!
I’m also fond of dailies as a leveling tool, though they are definitely not a speed-leveling method! I’ll often do the Thunder Bluff fishing and cooking dailies with whichever alt is currently at the top of my leveling queue. I particularly like to do dailies from past expansions with a character who is not yet at the level cap of the current expansion, so that they can get XP as well as whatever reward I’m interested in. I’ve put many characters through their paces at the Argent Tournament. The latest, Kinevra, eventually said enough is enough and refused to do any more jousting — I haven’t done the jousting in the Court of Bones for ages, only the arena jousting on the Tournament grounds, but it seems that I’ve finally gotten thoroughly sick of that. Kaelinda got a couple of levels between 85 and 90 from the Molten Front — good enough XP that Kinevra is contemplating going to Tol Barad after she’s finished at the Argent Tournament (still a long way off). After Warlords launches, I will probably get post-90 levels for at least some of my characters from the various Pandaria dailies.
The Kalimdor Pet Battle Trainer circuit sped the Pet Battling Monk quite handily through her first 70 levels. I’ve liked Pet Battling enough to occasionally vist Pet Trainers with other alts, if they’ve been convenient to wherever the character was questing, or to do a wild pet battle here and there. In the future, I might do Pet Battling as an alternative to gathering and LFD to skip over levels that don’t have any zones/quests a given character wants to do.
So that’s how I level, a little bit of this, a little bit of that, never exactly the same way for any two characters.