For melee weapons, it's not that important actually to raise your skills but just whack away with the right weapon type. To really "cheese it" use the weakest weapon possible so a dagger/war axe for blade/blunt since it'll do less damage and skills raise per hit, instead of damage done.
If you have the Vile Lair DLC, there's a person who sleeps all the time there that doesn't die so you could just attack them over and over on the hardest difficulty since you'll do only 1/6th damage
I'm playing the GOTY edition so...should be there?