More interesting options for the hand and feet slots. There's such a bevy of choices to equip in armor, head, rings, and shoulders, but hands and feet feel much less available. Plus it feels really weird for the best defensive foot option to be iron clogs, which is... kinda weird, from a roleplay perspective, those don't seem more effective than actual armor really. I'd also like a few more defensive neck options - as it is I've been mostly using fluffy scarf, and I'd love one of the amulets or unique items to be a bit better in that slot. Other than that, obviously top and bottom slots are meant to be mostly flavor not function, so no objection to those being kinda lacking.
Edit:
For context I play a leadership-maxing tank build, drawing aggro and taking hits, and between the Helm of Heroes, Conqueror's Breastplate, and Guldring pull up a full 80 leadership. Other ring is always going to go to the Ring of Fate, because of flavor (and I can't wait for the best summon in the game next level), the shield of absorption slaps as a concept, the cloak of the deeps is probably my favorite single item in the game on the basis of its adorable and touching story (and fits incredibly well mechanically with my build), and I love using the sanctified gladius, for both theme and function, unless someone wants to make it possible for me to get the dawnsword without missing out on the guldring. So I mostly just find my hands slot (arm guards), feet slot (winged sabatons/iron clogs), neck slot (fluffy scarf) and to some degree waist slot (bountiful bag) kinda boring - the hands and feet don't have particularly interesting theme or function, the neck slot has a few interesting options, but it pretty much comes down to fluffy scarf/fox-tail charm/ward amulet for a defensive build, and fox-tail seems the weakest of the bunch sadly cause it's the most thematically interesting, and finally the waist slot, well, I have no objections to bountiful bag mechanically, having a boost to healing is great to keep me alive, I just hate evergreen and wish there was any other valid waist option for a tanky character.