So I had a little brain-fart regarding the marvelous PVP sets.
Lets face it, the vast majority of Cyrodiil regulars are either already wearing, or working towards wearing one, or even two complete sets. And with this the vast majority, aside from colour choices, are basically wearing "the same thing" all with the Abah's Watch style
...now this is just speculation of course, but..
Getting everyone wearing one style of gear means less load on players machines - due to not having to load the normal plethora of mixed and matched items - which means a little performance bump?
Is this the reason my framerate has actually been creeping up a bit over time between patches?
*
shifty eyed glare at the dev team*

If this was intended, well then I would suggest doing something simply along the lines of an option to toggle the appearances for alliances. An option to view all players in pvp in a default faction armour style, or perhaps even just the enemy factions and still see the usual variety on your home team. That'd be my two cents. I really don't care how pretty the enemy is in the middle of a massive fight - I just want it to go smoothly!