Hi, im new to this and i would like to start with a barbarian, but i dont know where to put stats and wich abilities are the best for pvm. thanks

if softcore i would go on full str for more damage
look for wep with ee , armors and charms with str

from abilities i like more knockdown skill

I hearded full dex too for critical dmg ?

only if use axes you put 50% / 50% str and dex

alright, thanks sir

what about dagger rouge, all in dex? Wich abilities to choice ?

Go fighter

get a decent amount of vit, max strength, any weapon that isn't dex-oriented

Check the manual