So no Sonic 1, 2, 3/Knuckles, CD, Adventure, Adventure 2, Colors, or Generations.

That leaves:

Sonic Heroes

Sonic 06

Sonic Unleashed Wii/PS2

Sonic Unleashed PS360

Sonic Generations 3DS

Sonic Lost World Wii U

Sonic Lost World 3DS

My choice is Unleashed PS360. What's yours?

Sonic Lost World Wii U... Zelda DLC damn it!

I hear lost world is really under rated. Haven't played it though.

You forgot Sonic and the Secret Rings and Black Knight. Actually, Black Knight is one of my favourite Sonic games and it has got some very bad scores out there, the fact Sonic had a sword must have really pissed off reviewers, because gameplay wise it got everything right IMO.

From your list, I'd have to say Sonic Heroes. Played the PC version, never had any bugs when playing it that I can remember, great level design, reminded me a lot of 2D Sonic games, but it was in 3D and thankfully had no "find emerald pieces" missions. Generations 3DS also is quite nice, better than the console version IMO.

I liked the DLC, but It's pretty lacking in content. Lost World is 2nd place for me, but I chose Unleashed over it for a couple of reasons

1. Daytime levels

2. Soundtrack

3. Hub worlds (Lacking but at least It's there)

4. Soundtrack

5. More soundtrack

6. DAT SHAMMAR HUB MUSIC AT NIGHT

The Wii version of Unleashed was good. So was Heroes. Enjoyed them both. Did not like Colors.

Well I was only talking about the main series games. Those two are spinoff games.

Heroes was amazing, one of my favorite Sonic games.

Oh, sure. Sonic Heroes it is, then.