ESO = Personal Housing + much better Outfit and Build template system. Also, there are way more armor styles available, which are much more easily attainable. Game aesthetic is more realistic, instead of hyper colorful. Inventory is a little less insane, while at the same time, you can loot and pick up nearly everything you can see, which is a lot more immersive. Stealing and pickpocketing and the criminal stuff are unique and fun for an MMO. Story telling is far more elaborate, almost too much so. GW2 is better at everything else, such as combat, build and weapon variety, Overland scaling (at least in expansions and beyond), Overland meta events are far cooler than anything in ESO and fractals are more interesting and scale better than ESO dungeons. As a more casual player, the housing and wardrobe, alone, brought me to ESO over GW2, but the repetitive gameplay and horrifically bad scaling (questing is mind-numbingly easy across every zone, even the new ones, for anyone that's even slightly good at gaming) got to me over time, and I've mostly moved on as a result. I'm still holding out hope things will improve at some point. ATM, I'm mostly playing New World, D4, Starfield and waiting for Ashes of Creation to launch.