For me, the Sonic Advance series kinda mimicked the Sonic games on Sega Genesis in terms of... well, something.
Sonic Advance 1, just like Sonic 1, is a game that I can play maybe so often, but like, I don't find a reason to play those games over Sonic Advance 2 and 3, and Sonic 2 and 3K, respectively. I liked Sonic Advance when it came out. It was awesome, but then, you know, Sonic Advance 2 came out and blew the game out of the window for me.
Sonic Advance 2 is just like Sonic 2. Now while I'm not too sure if Sonic 2 is in fact that fastest of the three games, it damn sure feels like it is. And Sonic Advance 2 is definitely the fastest of the three Sonic Advance games. And that speed was something that I enjoyed about the game. I got a real kick out of trying to run through the various multiple paths (that do, in fact exist) in boost mode all day.
Sonic Advance 3 I felt was definitely the Sonic 3 & Knuckles of the series for me. It wasn't too fast like Sonic Advance 2, it wasn't too slow like Sonic Advance 1, and the game just seemed like the ultimate playground for me, similar to how Sonic 3K feels for me. The best part about Sonic Advance 3, however, was that it did not force me to play as characters that I do not want to play as, and I think that more Sonic games should follow this rule. Like, if Sonic games could literally have 20 playable characters and I don't have to even touch the characters I don't want to play as, that would be perfectly fine with me.
And then even with the greatness that I feel is Sonic Advance 3 and Sonic 3K, I always feel the urge to go back to Sonic Advance 2 and Sonic 2 without regret. Sonic 1 and Sonic Advance 1... not so much.
*cracks open a flame shield for not liking Sonic Advance 1 as much as the others*
edit:
QUOTE (Covarr @ Oct 16 2010, 11:43 PM)

edit: I also wasn't a big fan of the toy level. The first time a game ever did a toy level, the concept was already overused. The same applies to the music zone in Sonic Advance 2, which is basically lifted thematically straight from Rayman.
Don't quote me on this since I'm not a Ristar fan, but I think Music Plant is pretty much taken from Ristar... as are a number of other levels...
This post has been edited by MarkoMan: 16 October 2010 - 10:59 PM