Not to toot my own horn, but i got master ch pretty quick, and while some of the following info may not be pertinent to u, it holds true for anyone wanting to lvl CH faster.
I am going to go from novice on up. This does not take into account the recent changes to CH and the creature level things, but that is irrelevant. There are 2 ways to get xp (basically): tame/train and combat. I recommend taming and fully training EVERYTHING. Even the little chubas and gnorts. The xp for your efforts is good. Second, Get whatever skills u need to be able to call a baby GSP (greater sludge panther). Take the GSP baby and find an Ikopi lair. Other animals will do, but Ikopi are easy and they don't have poison or anything else that can wreck the baby GSP; and they drop herb meat, which sells pretty well. Send the GSP in to fight, and once he gets one hit in, kill the ikopi. Rinse and repeat. The reason to use a baby GSP is... they have decent kinetic resists and are pretty tough little buggers. Also, the xp you get from the GSP being low level is the key. Continue to take down these lairs and herds until you can get to creature management 3 (so u can now use 2 baby GSP for twice the xp). Rinse and repeat. Trade or sell the GSP's when they get over 3 days old. Most people who have baby GSP's are happy to trade them for healthy older GSP's. When I was working this strategy, I was getting over 300 ch xp per Ikopi (using 2 GSP's), and some lairs spawn more than 20 of them. I pulled in over 160k CH xp in one day.
The problem with going for tougher lairs, beasts, and NPC's, is that a)if your pet gets incapped and u don't revive him before the beast dies, you get no ch xp, and b) Even a 10k HAM pet will take some decent damage from a Tusken or Rancor before you can take it down, so in 3 or 4 fights, ur pet needs some MAJOR healing, whereas, a baby GSP can be healing in 2 or 3 squirts from the ole pet stim.
Hope this helps...