they are only 2 resist boots, because cold doesn't count. Poison is fine, but the only resists that matter on boots or normal gear are fire, cold, poison & poison length reduction
For PvP and PvM alike, poison resist >>>> cold resist. There is next to zero threatening cold damage in the entire game PvM and if your build cares about being chilled you use CBF as mandatory anyway, so all cold resist does is reduce the insignificant chip damage you take from sources like cantor blizzard (90 whole damage). Meanwhile poison is everywhere and some of the biggest damage amounts in the game, often unavoidable. Unravelers can deal 16000 poison over 2 minutes. Nobody can just spam antidotes, Cure helm being on merc makes PLR gear less useful against long duration poison because it makes durations logarithmic, and the only way to really mitigate poison past that is direct resist. Meanwhile in PvP basically the only real cold damage is blizzard sorcs, and either you stack mass resists with swap gear, or their cold mastery pierces your incidental main gear resists. It makes no difference if you swap on 2x frosts because you'll have -100 resist with or without it on boots. And meanwhile poison damage is used by ghosts/hybridsins, plaguezons/osamazons/damachzons, poison nova necros and the rare rabies druid.
fire/light > poison >>>>>> cold
Good stuff, thanks for the writeup.
Two notes:
First I think you meant lightning rather than cold here.
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but the only resists that matter on boots or normal gear are fire, cold, poison & poison length reduction
Second I'd like to add that for pvm, you'll definitely notice the frost nova on enemy death with low cold resists.
Not a huge deal but I regularly get slapped with it doing cows early ladder in junk gear.