Yep, I'm using the dwarf too. Putting most of my points in his power attack and throws. Any other recommendations?
Adroit Hands, so you can
Double Grand Smash faster. I've also been using Powder Mastery and Bombs against Elite mobs (which can't be thrown unless suffering certain status effects).
Place one in Evasion for that extra leap (especially since Dwarf's covers little ground). Deep Pockets later down the line isn't a bad idea to ensure you have space for bombs (or barrels, if you choose that instead), two weapons, armor pieces and potions.
I placed one in Eagle Dive, but it's honestly more of a nuisance than a boon. I sometimes use the triple jump to cover ground, but there are also accidental slips that leave me across the room (as you can't cancel the glide). You should try it yourself to see if you like it (save before and quit after if you don't want it).
Rock Skin is great. It's a free defense buff for a few seconds standing. That's good stuff, especially if you want to stand close ground near your Power Smash'd weapon while it cools down.
Toughness is another one to keep an eye out for. A lack of flinch and knockdown for weaker attacks adds up for more grabs, tosses and Grand Smash setups. Who wants a single arrow to send them flying?
I placed my Vitality Boost to about an 8 or 9. It's high enough, and with high Nutritionist skill you max out your health to 999 within a few bites. Your mileage may vary if you have found another personal skill you want to upgrade and play more defensively to begin with.
In short: Max Power Bomb, Grand Smash, Powder Mastery (More important for later levels), Rock Skin, Toughness, Vitality (High, but max is unnecessary), Deep Pockets, Adroit Hands, Nutritionist.
Place some in: Bomb Satchel and Evasion
I personally skip out on Lethal Fists as Grand Smash double mode is godly for mobs as well as tosses. It's not hard to evade and prepare for the next Smash or toss and Dwarf's combat range and fisticuffs are left to be desired. You can slightly relieve that with Frenzy, but I don't utilize many fists against elite units (which are plentiful in later difficulties). I find the points are better spent used giving Dwarf a ranged option to possibly cause knockdown (like a well thrown bomb) and get an OTG Grand Smash.
Also, if you use bomb, remember to toss it fast ahead of you with Triangle + Forward. It took me too long to figure that out.
I'm Level 99 Dwarf and on Infernal right now wondering what to put my leftover points in. I'm leaning Powder Mastery to make my bombs stronger, making Elite mobs even easier to control.