My personal style:
--I'm versed in as many verbs for strike, cut, and stab as I can get.
bang, bash, bean, beat, boff, bonk, box, buffet, clip, clobber, clout, collide, conk, crash, cuff, ding, drive, hammer, impel, knock, nail, percuss, plant, pop, pound, pummel, punch, punish, run into, slap, slug, smack, smash into, sock, swat, thrust, thump, touch, wallop, whop
amputate, behead, bisect, bite, carve, chine, chip, chisel, cleave, clip, crop, curtail, dice, dissect, dissever, divide, facet, fell, flitch, gash, guillotine, hack, hash, hew, intersect, lacerate, lay open, lop, mince, mow, nick, notch, part, penetrate, perforate, pierce, prune, quarter, rabbet, reap, rend, rip, rive, saber, saw, scarify, scissor, score, scrub, separate, shave, shear, sickle, skive, slash, slice, slit, sliver, snip, split, sunder, transect, truncate, whack
bayonet, drive, gore, jab, jag, knife, open up, penetrate, pierce, plow, plunge, prick, prong, ram, run through, shank, sink into, slice, spear, stick, thrust, transfix
The above is from a quick trip to thesaurus.com .
--I don't overdo it. I like to throw in maybe one descriptive every three or four hits; doing it every single attack might drown out the exciting and make it ordinary.
--Don't forget that not every hit is three inches deep; a 10 point hit on a 100 hit point monster might be a light gouge in the arm. It's still a hit, for purposes of poison, etc. but no need for every hit to be a heart thrust.