I currently own 24 different body armors, with a few sets of all-purpose glove and boot combinations, as well as over a dozen helms that I mix and match into a few sets that sometimes I change up. I switch what armor set I wear pretty much every map, and typically I'll try to pick a weapon that looks good with that as well. That, in turn, works out to pretty much every decent polearm (and a few others for fun or style) as well as a handful of 1handers and 2handers (which I don't have any proficiency in), and two kinds of crossbow for when a map comes around that I wouldn't be able to stand playing regularly.
I've also got several different ladders and siege shields and construction sites and materials and all of that sort of thing...
It's frustrating having to sell items whenever I want to buy another one that I don't currently own, because of that bug that causes some of them not to show up in-game when you own too many.
I suppose I should probably sell my horses, as I haven't had riding since the experience change patch, and I still own my cataphract and plated charger