Well, theoretically:
7/7 medium for stamina regen, reduce cost and critical.
You can go 2H or DW, both have single and AOE damage. DW gives you some range with hidden blade if you dont use a bow. You can use magicka to support you, like DK with dragonblood/spike armour/fire grip to pull healers out of groups. Or you can use templar for healing/health and stamnina regen.
DW wirlwind morph gives stamina back, momentum gives you some health back 20 seconds later.
Problem is, you would need a race that either heals or restores stamina when melee attacking enemies, that is Imperials, Redguards and Orcs. (max health, max stamina, stamina regen, health back on melee atatcks and stamina back on melee attacks).
Players overlook stamina in ESO both PVE and PVE. You block with any weapon, reducing damage taken and preventing knock backs/stuns/bleeds/negative effects (uses stamina), you break CC with stamina, you get out of roots with stamina, you sprint with stamina etc.
Players focus a lot on survivability and damage, which is understandable, viable and fine. But something about ESO, that makes one run out of stamina so fast, regardless of passives used in pve or pvp, its that moment where you can not block that one spell or that once charge and you can not move, just lying there dying.
Im still trying to crack a melee stamina dps build, which again in theory you can tank and should be able to tank with stamina builds in medium armour, but could not quiet crack it just yet. ZOS needs to work really really hard on the skills for stamina builds to make AOE viable and stamina builds just overall more viable (especially 2H)
Hope this helps in anyway, im currently working on a redguard DK medium armour 2H and DW build. Might add 1H/shield for aborb magicka (defensive stance morph) for pvp and/or invasion (shield charge morph).