I played on a Wii for the first time about a month ago
... and I REALLY feel like I've been missing out.
It may be legacy, but it has something that the likes of Sony and Microsoft and their developers have forgotten: Simplicity.
Back in the day, you could hook up your NES/ Mastersystem/ Megadrive to a telly, grab a controller and play for a bit, then die and hand the controller to a mate and say "your turn" and you'd all sit around hooting at the mistakes/ daft stories and whatnot. The controls were simple and the games were more social in a way. That's what the WII has over the others.
IMHO, it may be legacy, but you don't NEED fancy graphics, 7.1 HD surroundsound and the like to make a good game. You need a good story, an element of fun and something to make you care about what you're doing.
EA has kind of failed in all those departments for many, many rears.