I've got to say, I can go back and play SSX3 at any point and still feel that its amazing. Everything from the sound to the graphics design I just like to listen too and look at. Im in search of a PS2 at the moment so I have a machine to play it on should mine finally die.
Tricky is a great game as well, I have always found it difficult to go back to this and the first SSX did its job by helping to get the other games created.
As for new games like Steep. I really dont like what they offer and lost interest really quickly. I like the arcade feel of a game, Steep etc is more like a sim, and if youre playing a sim then just go out and do it if you can. Much in the sense of Gran Tourismo, Id much rather have a Burnout game.
SSX 2012 was a nice addition to the set so far (hopes), but it doesnt hit the heights the older games hit.
Overrated - no way
but everyines view is different