I could probably list a lot of Sonic games here, as I was a pretty damn blind fan for a long time and still have a bit of a soft spot for the blue guy.
As mentioned elsewhere I initially got a lot of enjoyment out of Sonic 06 but then other peoples opinions rushed over me and I realized more and more where the problems were. I haven't really played it since fully completing, so this is a strange situation.
To add to the above, I was thinking of putting Sonic R in aswell but it initially got pretty decent reviews and only later became the source of ridicule for... I don't know what.
Sonic Forces is a more recent and much better example. I quite enjoyed it and the opinions didn't change my pov. It is not among the top games, as it is too short and simple, but the average score it gets is seriously too low.
I also really like the Tokyo Highway Challenge / Xtreme Racer series of games, ever since I picked the first one up on the Dreamcast out of pure curiosity. Kept buying them as the second one came out, then on the PS2 and then on the 360. I really liked all of them. These tend to get pretty bad reviews all around. They are very much niche games as I understand though there has to be some following in Japan. Otherwise they wouldn't have made so many of them.