WOW Power Leveling: It is best to have tank at this level on pop rings
Where to level - Level 1-12: Since there is no place for a low VIT character to train WOW Power Leveling, I will there for suggest porings or tank on pop rings.
Level 12-20: Same thing, I will suggest porings but as time goes by, go to payon cave to take down skeletons and familiars and slowly to pop rings. It is best to have tank at this level on pop rings.
Level 20-40: After this level, you can go solo on your own by training on pop rings until level 30, after that you can try on orc dungeon level 1 or orc village. Or you can try anthell, if you have people to tank, tank on orc lady or alligator.
Level 40-job change: Orc ladies or orc dungeon.
Level 60-70 (Normally is 60 after job change): Toy factory level 2 on mist case, as for champions, if you have psychic wave, you can train at GH (glast helm) prison level 1 on rybios.
Level 70-80: GH prison on rybios and monster there, kill whatever you find there as possible.
Level 80-90: Almost anywhere, I will suggest turtle island level 1 and slowly to level 2, it is best to have AGI of 90+ at this level.