Well, in my second play on Nightmare difficulty, I play a mix of Ranger/Warrior. At first skills seemed unfitting (that charge skill + bow? That ain't right!), but then I saw this is kind of effective.
There are only a few skills in every class, which are worth upgrading, so you can become more or less, very good in two classes, especially with lot of skill points you can easily get in FoV part.
But beware, some skills become awesome only after being combined with other skills. Firewall is good, I admit, but without Destruction (the skill that increases damage of magic attacks?) and, especially, Way of the Mage, it's not used to it's full extent. Exploding Arrow becomes good after upgrading it with other skills, before that it's... not very impressive.
But I do kind of well on Nightmare with my strange mix of Warrior/Ranger, even if The Ranger part is the one I put more emphasis on.
Warrior is AFAIK the hardest, especially before you get awesome stuff. It's surprising, that at the start your typical sword is outdamaged by your typical bow, and bow doesn't even require you to get closer to the enemy! After you get awesome onehander like Blood Echelon Sword and mix it with awesome skill (the one that costs +100 mana, but deals a few hits), it changes though. Now my mix of Ranger/Warrior doesn't know what the hell he wants to do and which set he wants to wear.
Archer is easiest at the start, I'm now in the middle with my Warrior/Archer hybrid and it seems he starts slowly becoming the weaker part, probably it will change when I'll get my hands on some good bow.
Pure Mage is second easiest at the start, then gets harder, then with giantic upgrades of fireball/firewall gets mindlessly easy, even in FoV
Warrior is hard at start, but then only gets better. I don't think he ever beats the mage though, who gets most opponents down with one hit
Last edited by GabeN; 01/02/11 07:42 PM.