The Video Game Critic

I think Sega's output as a third party developer is harshly criticised sometimes. A lot of their 6th gen output was good (OutRun 2006, Panzer Dragoon Orta).

I've played Sega Rally Revo and really enjoyed it on PS3.
I'm also really interested in Sonic Generations.

Any other recommendations from Sega for the PS3 (or PS4).

Sonic All Stars Racing is solid fun as well as Binary Domain. Both are also fairly cheap right now.

Valkyria Chronicles comes highly recommended by a number of my friends. The Yakuza series, Alien: Isolation, and Alpha Protocol are also classic.

Sonic's Ultimate Genesis Collection comes highly recommended if you're feeling nostalgic. It covers a ton of genres, and even if not all of the games are masterpieces, there's something for everybody.