Skills you really need to check out:
Mining - you only get like 570 XP ea rune ore (Best ore you can mine)
Farming - A lot of clicking for a little bit of XP (Maybe add tree's/fruit tree's?)
Hunter - It's bugged, I tryed it out on DXP weekend and it was terrible, dont want to try it out without DXP XD (You dont get any XP when catching a Snowy knight or a Ruby, not sure about Black warlocks because dont got the level yet!)
Smithing, Herblore, Fletching, Firemaking, Fishing, Cooking, Woodcutting, Thieving, Agility and Crafting - Should be the same rate as DXP tbh.
Runecrafting is fine how it is right now.
Maybe a idea to make the XP rate x15 from OSRS rates. That's not to bad I think?
Fun thing to know: I did calc out how many Runite ores I should need if I was going for 200M Smithing, 118K ores, if I should mine them myself thats only 60M Mining XP that means I can get more then 3x 200M Smithing when I got 200M Mining lol.