You are basically going to want the same gear as a Zealot, except Deadly Strike won't help you and you your weapon selection is going to be narrowed down a lot. Weapons, from poor to wealthy, you are looking at Crushflange, Crescent Moon, Redeemer, Asteron's, Stormlash, Grief. There might be others, but really, Grief, and to a lesser degree the Redeemer, are the only way you will get decent numbers with Smite.
Lol in my opinion all smiters are pvm. If you want one with alot of resists, does great damage, and takes very little damage look for the "Guardian Angel" Build on youtube. It is very expensive but it is quite good.