Yes, this poll won't include Sonic 06 since it would end up  just like the Final Fantasy poll. FFXIII ended up with 45-50% of the votes and with Sonic 06 being one of the worst games ever made it may end up with 80+ % so I am not putting it in the poll.   I came with this idea since opinions about the 3D Sonic games are all over the place. The Adventure games are both hated and loved  by a  good chunk of people, Unleashed while it gets  tons of hate it is also considered great by a good chunk of fans. Even Shadow the Hedgehig gets some love.  So  vote your absolute worst 3D Sonic.......... please.

Well... Sonic 06 is bad because of gameplay issues and bugs most of all. The game looked great otherwise.

Unleashed is pretty awful. I got that game for one day before i sold it. Shadow, despite the dumb premise of guns, was actually a decent game. Loved how it had so many stages and how you could replay it and go with a almost completely different set of stages. It was also cool to see a new villain besides Eggman.

I guess i would say unleashed. It was modern Sonic stages with werehog stages. So, bad with awful. There was nothing good in that game for me. Even if it went 2D on some bits, it was just terrible.
I never played the Wii games though. Dunno how bad they were.

I guess some people might refer Sonic R or Racers/ZG/FR or even Sonic 3D. I thought despite flaws they were enjoyable. FR i never played and i hear its completely unresponsive. I suppose its a similar situation to Sonic 06.

       Sonic 06 also had a really bad story...... in my opinion at least.

Doesnt matter cause it all gets erased in the end (nothing of it actually lingers). But yeah, it was weird at some points. I liked Silver and Blaze though.

Anything apart from the Adventure games really. The Adventure games are better than the 2D originals in my opinion, I don't understand why they can't just use those games as a basis when making a new 3D Sonic.

Black Knight stands out as the worst of the worst though.

       Sonic 06 happened.

Probably Shadow the Hedgehog - Sonic 06 is genuinely horrendous though

See, thing is, I skipped games like Secret Rings/Black Knight/Unleashed because I'd heard they were terrible, so I couldn't judge just how terrible they actually were.

Of the ones I've played, Heroes was the worst. But it wasn't actually bad - just Colours; Generations & the Adventure games were better.

"Lost World" might be one to add in future once people have more time to get to grips with it :P

I got enjoyment out of all of them (even 06 at some points), so I really can't call any of them bad, but if I had to pick the ones that I liked the least, It would have to be the Storybook games because of their on-rails gameplay. I would say that Secret Rings is a bit worse than Black Knight though, can be so frustrating because of the controls.

And while I am at it, my favourite ones are Generations and Adventure, in that order. I did not start playing Sonic until 2011, so my liking of both is not nostalgia based. Adventure 2 was great as well, but imho noticably worse than Adventure 1. There you have my two cents.

Oh, and since it's recent: I really like Lost World, too. Might become my favourite one if you don't count Generations/Adventure.

       Heroes is still a flawed game... specially compared to Adventure 1 and 2.