It doesn't matter if it's AAA, it's still an MMO.
EQ2 changes model via an appearance slot. Have the item? Put it into the appearance slot. Quick change, no cost, no anything. Dyes come in one type, RBG if I remember correctly, pick whatever color, minimal and one time cost I believe. Believe it's two part, can't remember exactly.
If you don't need to attune the item (example of an common / uncommon item), then you can transfer that among all characters. Believe it doesn't have an item type requirement other than weapon, though I may be wrong on that. I just remember my bard (chain) wearing some cloth and leather at points. Don't think I wore a plate though.
To stat transfer is exactly the same as taking one item's look and slap it onto another's appearance.
Also reskin is not remodel. To replace an appearance is to take a completely different model set from a gear and use that as the appearance. A reskin is to take the same model and apply a different texture.
Plus, why keep saying inferior when it is exactly the same thing.
EQ2
http://eq2.wikia.com/wiki/Appearance
If you don't know by the description. Attune = soul binding it.
LOTRO
http://lotro-wiki.com/index.php/Outfitting
It's the same as any appearance slots in other games. It is a much better method as it wastes nothing, costs nothing.
It is the exact same result and costs nothing other than some clicking, overrides any appearance that you have yet keeps the same stats. Gives you customizations that are easy to flip around and make you look like a clown if you wish or make you look like whatever just as long as you have the item in the inventory. No gold cost, no real money cost, no npc, etc.
SWTOR's system is just taking an already item that you can shell out it's mods and such and stick it into another 'orange' item (another item with sockets), and it'd receive the same stats and will retain the appearance of the orange item. However, costs credits.
GW2's appearance change is no different than WoW's with the exception of adding a dye and pretty much the same as Tera's, except Tera also allows you a choice of RBG dyes. It is just taking another item, then destroying (not in WoW for this case) and transferring that appearance to another piece of gear.
Type google - Rift Dye. Receive nice article
http://riftwardrobe.wikia.com/wiki/Dyes
Saying you can't find anything is a bit of a cop out.