I've only done the full dharoks method, but it's great XP. Someone said a while back that it was nerfed but I stopped playing before that happened so I'm not certain of the rates now. I thought it was pretty fun as well. You can make a fair bit of money too off of rewards if you're pretty high level (to keep supply use low) and it's apparently good xp for chinning/bursting too. But for chinning/bursting I'd recommend Ape Atoll.