Sorry, I'm a bit tired and these are all from memory. Maybe I'll edit this post when I feel like giving my character a lot more detail.
My last character reached 48 and I posted it's details somewhere in this forum. Lately I started a new game again 2012. I wanted to find out the strategy for the easiest play through nightmare. I ended up going both ranger and melee early on and up to the end.
Level 49
vitality and intelligence 100
Strength and Dexterity shifting from 90+ to 100 depending on my weapons.
Spirit, a pathetic 30+ something
Skills are mostly passive defense and some offense: regenerate, life leech, rush attack, thousand strikes, criticals... Level 10 healing aura on all jewelry, 10 lifeleech and magic/melee damage... etc. Went for non-set high level items this time, lovis bracers, wasteland leggins etc. then got all unique (red) belt and jewelry
I reached 49 earlier and fought bellegar with that level. I hope to see others post more powerful characters since I'm curious. My character needed no poition and healing spells (well, TBH once or twice when faced with multiple knockdowns). Ygerna fell down quickly again with a single thousand strikes. I might reload and explore the spirit and mage paths if they yield more powerful builds. This is quite interesting.