Clear and Concise leveling options.

[Ossigor]

My path, roughly. Assumes mostly grouping

1-12 newbie areas. Doesnt really matter as long as you fight white/high blues and dont mess around too much, just focus on grinding it out without too much traveling.
12-30 Unrest and/or Mistmoore
18-26 Upper Guk
24-35 Solusek A
34-50 Solusek B, Lower Guk

For soloing, 22-35 you can go to Centuar camp in SK
Depending on class, 18-24 the Hermit hut in SK is great as well

If you want AFK-mode leveling, at 28 got o West Karana -> Ulrich Mcmannus at barb fishing village. Exp til 36 is not shabby if you just like watching tv. Spawns every 5-6 minutes, drops bronze armor.