Guide to help people level their monster quick. These zones I have went through and worked really good for me.
Non Box: Small
White Box: Medium
Blue Box: Large
Tip:
Lizards won't aggro you while you're a Beast.
Vermin won't aggro you while you're a Lizard.
Plantoids won't aggro you while you're a Vermin.
Beasts won't aggro you while you're a Plantoid.
Ronfaure/Gustaberg/Sarutabaruta
Any Size, Level 1-12.
Just kill everything that is Ep-T till you're about level 10-12.
La Theine/Konschtat/Tahrongi
Any Size, Level 10-14.
Just roam till you get about Level 13-14.
Buburimu/Valkurm
Any Size, Level 13-22. (Large can't go to Valkurm).
Grind the Snippers at the beaches (Buburimu Beach G-9/H-9)(Valkurm Beach E-9/F-9/H-9/I-9) and kill Leeches/Pugils when about Level 16-18. Make sure to watch time because Bogys will blood aggro and kill you. Stay away from shore till they De-spawn. Continue this till you're about Level 18-22.
Qufim Island
Small/Medium Size, Level 17-28.
If Level 17-19, go to lake in the middle and kill Worms/Clippers at H-7. (Watch out for Banshees at 20:00) Grind the Worms/Clippers till you reach Level 22 and get Pugils involved for the replacement of Worms. The Cliffs at North work perfectly for Pugils/Clippers and will last good till about 28-29.
Jugner Forest
Any Size, 20-24.
Grind the Leeches/Funguars/Tigers/Goblins/Sheeps/Beetles. You can find them along the path, just be careful, leeches link... Continue this till you're Level 23-24.
Batallia Downs
Any Size, Level 23-30.
Head to the North Cliff at J-6 and kill Mayflys/Gobblins along way if you don't spawn nearby. Avoid Tigers till you're about level 25 so death is not risked. Once there, grind Clippers/Ba/Orcs. Get tigers involved when you have reached level 25 for good exp rewards (Goblin Bounty Hunters 25+.) Ignore Clippers when they read below EM which should be level 25-26. Focus on Orcs/Tigers/Ba till then and do this till about Level 30.
Beaucedine Glacier
Any Size, Level 30-40.
Fight Tigers/Goblins on the path to Ranguemont Pass (E-11) till you reach Level 35. (If your mob is Small/Medium, go down one paragraph) For Large Mobs, Head down to Fei'Yin entrance and grind Goblins/Dolls till you're about Level 40.
Garlaige Citadel
Small/Medium, Level 35-40.
Grind off the Siege Bats/Borer Beetles before Gate 1 and the same floor. These are really good for melee type mobs.
Crawlers Nest
Small/Medium, Level 35-47.
Level 35+, Grind the Worker Crawlers at the old School camp at I-9 till you're about Level 40-41. (Careful they link) Head west to F-9/G-9 when level 40-41 is obtained to kill Nest Beetles, they link but don't aggro. You can chain them till you're 47 for nice exp.
Xarcabard
Any Size, Level 40-55. (Only attempt level 40 if you're using a large mob.)
Level 40+, grind the Skeletons at J-9 till you're level 42-43. They re-spawn quick so pull them away, Blood Aggro is your danger. After that go to I-7 and grind off the Gigas till about level 46. (Any Size from here) Go to the entrance of Castle Zvahl Baileys Entrance E-7/E-8 and grind the Demons till about 50. (Warning, Demons have long Sight Range for spotting/Linking) You can increase to 52-53 if you go to Uleguerand Range Entrance F-7 and farm Demons there. They're 2 levels higher than the Demons at Castle Entrance. I killed Demons there till about 55 with my Dhalmel. Large Mobs are stuck to these targets if players wish to get them 60.
I will update with more decent camps, people can post good camps to, plus update the level limits.