1-15 = Tristram, just join a game and suck exp | finding a exp shrine is highly advised

15-20 = tomb runs, 1 game with a high level running you usually is all you need

20-24 = cows, again 1 to 2 runs and your done, (exp shrine!)

24-25 = ancients... free level take it where you need it.

25-35 = normal baal

35-45 = nightmare baal

45-xx = hell baal

Not only is this guide is easier to read then spectors, and quicker. This guide took me approximately 3 mins to right down. and 5 years of in game testing. tell me im wrong, do it!

(actually its been so long sence i played i might be wrong a little bit, but i know kill mobs in bloodmoor till your level 5 is alot slower then joining 1 trist run : /)