Just wanted to share my level 2 solo melee wizard taking on the 2 early bears in hard difficulty:
https://www.youtube.com/watch?v=48mY4ImHJ2w
Personally, I think high PER is better than high DEX (this doesn't seem like the majority view from all I've read so far). I tested a Cipher mostly before tweaking DEX, RES, PER in this fight ...but may go with a Wizard in my play through since they can do a lot more damage (assuming you are rested...). There is also some tactical planning with multiple grimoires, etc...
From my play testing, low PER just seems to graze/miss a lot more and having high DEX wasn't as useful since my spells are very limited cast and when I am spelled up, I need to make the most of it in that short window.
That said, this fight can be won pretty consistently assuming your slick hits since the big bear's chance to hit you after deflection spells are up is < 10% I think.