Best hardmode armor to aim for in Terraria?

depends where you are in hardmode, the answer changes a few times. - straight after the wall: whichever cobalt/palladium, mythril/orichalcum or adamantite/titanium set you can make. titanium's set bonus is great for melee - after the mechanical bosses: hallowed. the dodge set bonus carries you to plantera almost on its own - after plantera: chlorophyte or turtle for melee, shroomite for ranged, spectre for magic, spooky for summoner - after golem: beetle for melee - endgame: the lunar sets if you're summoner, spider armor from the spider caves is the early pick before hallowed.