I choose pikachu.
:P
ZeniMax Media is the parent company,
http://en.wikipedia.org/wiki/ZeniMax_Media .
So I guess more appropriately ESO is made by ZeniMax Online Studios,
ESO being their first creation.
ESO is being helmed by
Matt Firor who you may know from DAoC (Dark Age of Camelot) - Yoshi actually likes this game.
You can see ESO is working up the hype with all the dev talks and trailers, SE hype machine is a bit silent* - but they are also under different circumstance of having crashed previously and being foreign (doing anything requires an extra layer of work).
Edit: ESO website / hype is supporting EN / DE / FR.
Double Edit*: SE has a blog / +1 cookie