Classic multibox leveling guide!

[Peregrine]

30-44
Once you hit the level 30 move to Scarlet Monastery and grind the SM graveyard until you're level 32.
At lv 32, you can freely move to library and grind freely here until you're level 38 (at level 38 you will receive a new rank of Arcane Explosion).
Once you hit lv 38 move to Sm Cathedral and grind here until you're level 42 or 43. Once you hit level 43 you can move to Tanaris to Gadetzan and pick up and
complete the following quests:
https://classic.wowhead.com/quest=16...wander-justice
https://classic.wowhead.com/quest=2873/stoleys-shipment
https://classic.wowhead.com/quest=28...ndre-firebeard
https://classic.wowhead.com/quest=83...hsea-shakedown
https://classic.wowhead.com/quest=28...r-to-mackinley (optional)
https://classic.wowhead.com/quest=27...h-scorpidsting
https://classic.wowhead.com/quest=99...n-water-survey - this is repeatable quest so each time you turn this in, you will receive 280xp.

44-53
Once you hit lv 44 or 45 (45 if you prefer bit easier) you should move to Zul'Farrak and grind your levels there.
Upon reaching lv 50 move to Hinterlands and pick all quests there and complete it, namely:
https://classic.wowhead.com/quest=78...antusk-village
https://classic.wowhead.com/quest=78...nd-her-minions
https://classic.wowhead.com/quest=78...elder-torntusk
https://classic.wowhead.com/quest=78...ration-anxiety
https://classic.wowhead.com/quest=7850/dark-vessels
https://classic.wowhead.com/quest=7815/snapjaws-mon
https://classic.wowhead.com/quest=78...lost-his-lunch
https://classic.wowhead.com/quest=7816/gammerita-mon
https://classic.wowhead.com/quest=78...anch-hooligans
https://classic.wowhead.com/quest=78...ing-the-fallen
https://classic.wowhead.com/quest=7829/hunt-the-savages
https://classic.wowhead.com/quest=78...g-the-stalkers
https://classic.wowhead.com/quest=78...listic-cousins
Once you complete those,you should move to Searing Gorge and complete the following quests:
https://classic.wowhead.com/quest=77...kouts-spyglass
https://classic.wowhead.com/quest=77...he-competition
https://classic.wowhead.com/quest=77...s-more-like-it
https://classic.wowhead.com/quest=7724/fiery-menace
https://classic.wowhead.com/quest=77...se-fat-fingers
https://classic.wowhead.com/quest=77...ep-deprivation
https://classic.wowhead.com/quest=7722/what-the-flux
https://classic.wowhead.com/quest=77...seer-maltorius
53-60

You should be close to 53 or 54 (depending on grinding of mobs).
I would recommend moving slowly to Brd (Blackrock Depths dungeon) and farming there all the way to the level 60. Optionally, you can finish up the quests at Winterspring and
Ungoro crater combined with Western Plaguelands and Felwood and you should be able to hit 60 with last 2 levels in BRD


1d) PVP SPECC FOR LV 60 PVP
Mage:
https://classic.wowhead.com/talent-c...531-0552020123
Priest
https://classic.wowhead.com/talent-c...5141-204051332
1e) OPTIMIZED GEARING FOR PVE
https://classic.wowhead.com/gear-pla...KCD0hAEEhmEkJl
This is very solid gear that takes into account that you're fire specc as this is purely for soloing dungeons as boxer whilst having insane amount of crit.
This is for both priest and the mage.

1f) Macros

One button kill + auto accept ressurection
/click StaticPopup1Button1
/use Smokey's Lighter
/cast Arcane Power
/cast Presence of Mind
/cast [@player] Dense Dynamite
/castsequence [@player] Flamestrike, Arcane Explosion, Arcane Explosion, Arcane Explosion, Arcane Explosion
Pyroblast + Presence of Mind + Trinket
/use name of your trinket
/cast Presence of Mind
/cast Arcane Power
/cast Pyroblast(Rank 8)

Flamestrike on yourself
/cast Presence of Mind
/cast Arcane Power
/cast [@player] Flamestrike

Closing word:


Obviously, there is no 100% bulletproof leveling guide so if you fall behind or go ahead you can always skip certain parts.
If you have any feedback be sure to send me a message and I'll update the guide if needed.
Thanks for reading and godspeed with your leveling!