Hi there!
First in this section!
So, I've been doing Leoric's manor for about 5k a run (at level 20) 30k~ in nm at 38, 60k a run at hell, 50+, each run under a minute. (This varies depending on dps and stuff though) Which is pretty good at those levels where Core of Arreat is still too hard. So I figured I'd make a profile for it, and while that's done, I might aswell share it.
This is great from levels 15-25 (normal), 37-43(nightmare), (50+ (hell)
I'd suggest getting a Core of Arreat or Act 3 q1 profile to go with this, since it's better exp in there.
And stack lots of +exp with expgem on helm.
Pick Act1, Quest 8, part 2. Run infront of Leorics Manor and get the checkpoint there. Then you can start your bot and see the exp rolling in!
I set my kill radius to 40 and my loot to 20.
Personally I'm using Kurious' lootrules for only picking up legendaries, which you can find Here.
For those getting stuck, this plugin could help [Plugin] Unstucker - restarts if your character gets stuck. Thanks to Skohcl for reminding me ^^
Also added a Plugin to skip adds in the yard. (and a Act3 quest 1 simple profile)