I played a DW warrior (on Medium difficulty) with all points in Strength and Vitality, 60/40 ratio. I maxed out lockpick first, then maxed out Dual-Wielding, Regenerate, Life Leech and Whirlwind(for some AOE). DW, Life Leech and Regen I took far (lvl 10-ish), Whirlwind I left at 6 (Kinda feel guilty about it, shouldve put points into rush attack and Jump Attack mayhaps). The game's easy from that point.
Don't do Thousand Strikes, it's a horrible idea for a full warrior. You can't use it without getting spirit points and magic potions galore, because it's a horrible mana sink. I imagine it would be good for a Battlemage hybrid. But still. Stick with mainly passives, and get one low-cost mana skill (like Rush Attack or Whirlwind). Your creature will keep your mana low enough, and it won't hurt to put some points into summon demon later on.
Anyway, with Regenerate and Life Leech and good armour, playing a warrior isn't hard. They really can't do much to you then. It's also real good for dragon form - if you get low on health as a dragon, just shift into human form and auto-regenerate while kicking some Black Ring behind - then ascend again and kill some more towers... no down time whatsoever, and you can keep your potions for the interesting fights. I would suggest getting a two-hander though, there are a lot more good twohanders out there than onehanders, even if you don't discriminate (swords/axes/hammers). For a dual-wielder who only wants swords, life's tough. Also, the great warrior armor set includes a twohander - extra bonuses.
EDIT: Never used ranged. It's easier to draw them by just getting in range so they'll spot you and then hiding.
