A bit late to the party, i know, but i finally got around to trying out the PTR. I made a dwarf paladin and...the troggs just wouldn't die! So i did what any sane man would. I logged on a lvl 21 druid that i have on some crappy realm and copied her on PTR too, so that i could compare numbers.
A lvl 20 spider in Duskwood on life has 547 HP compared to 1227 on PTR.
You need 29.100 xp to get to 22 on live, compared to a whooping 46.560.
Quests give about the same xp, a bit less on PTR but it might have to do with level scaling.
But mob kills give the same amount of xp.
Damage has gone down a bit, not that much tho, but overall stats are lower.
So yeah...glad i already have all classes at 110...
https://www.youtube.com/watch?v=KEVD...ature=youtu.be for the actual video proof.