Forelle : you are fast ! speeding through the difficulty !
Yes, I leveled surprisingly quickly so far, without Cain set, ruby or anything, only the experience bonus that comes with the gear anyway (without focusing on it). I think the reason is that I enjoy the skills I have now since there were none in the beginning. :D I noticed that I use some skills a lot, others hardly ever, even almost forget about them. I was thinking about it, maybe it is because they are not really my choice, and I stick to the skills I consider as most useful. I wonder if you make the same experience with your character. Would be interesting to share that information. Even though I have a skill, which cannot be used, I feel my WD fully useful. I even think that I could get him to 59/60, which I actually doubted as I started off with him.
And yes, I also clear the entire map and dungeons that come with it. Sometimes I repeat some parts - either because I resume the game and have to or because a bar or two are missing before a big boss fight so that I am a bit higher level with a bit better stats to make my survival more likely.
Here some screenshots I took yesterday (Nightmare difficulty):
Against the Butcher: http://i48.tinypic.com/28hpwlt.jpg
This WD seems to be one lucky guy. He found another legendary: http://i48.tinypic.com/r8cak9.jpg
The witch is down: http://i46.tinypic.com/2yowp50.jpg
ERm my familiar i guess , it doesnt have anything that reminds me that i am not using it , other then when i am watching the CD of spells , i realise that I have such a skill.
LUcky WD ! finding legends !
speaking of trouble , Keywardens are dangerous ... almost died against it when it spawned next to another pack . Had to lure the 1st pack away before slowly sniping + towning to get rid of the warden