What's the LEAST popular Sonic game?

I asked 1600 people to rate every mainline Sonic game from 1 to 5 - here are the results! Which game is the most popular, and which one is the least popular? Let's find out as we go through 21 Sonic games from worst to best!

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- Footage of:
Sonic Adventure, Sonic Heroes, Shadow the Hedgehog, Sonic 06, Sonic Unleashed, Sonic and the Secret Rings, Sonic and Black Night, Sonic the Hedgehog 4 Episode 1 & 2, Sonic Colours, Sonic Generations, Sonic Lost World, Sonic Boom: Rise of Lyric, Sonic Mania, Sonic Forces, Sonic Frontiers and Sonic Superstars
…courtesy of @FCPlaythroughs. I’m very grateful to their hard work recording footage of all those games.

- Footage of Sonic 1, 2, CD, 3 & Knuckles recorded by me!