S0ulz did not mention that you can stack Damage Resistance and Damage Reduction. So a Brawler's Belt combined with Gargoyle Boots' Stoneskin gives a really nice reduction on the damage taken.
Some examples would include stealth, focus-fire, luring, kiting and most importantly for fighter types - knockdown.
Please remember that luring and kiting are against server rules. Thanks!
Naturally I wasn't implying that anyone should abuse the AI.