i play/play all the classic ones. From sega console, to dreamcast (even tho sonic gx, think that was the name wasnt amazing). Best one had to be Sonic adventure battle 2. it introduced shadow and the chao creatures.
Shadow the hedgehog wasnt bad either as it attempted to be more T friendly as oppose to everyone. After that i disconnected with sonic, the 360 versions and above tried but werent really sonic more like sonic fan games, like the newest on where you can create your own main character. Sonic mania however used the same formula as the old sega games and was really good for barely $15. TBH if they remade sonic battle 2 with the chao garden for new gen consoles ill def buy.
What could have been, what should have been, is nothing more than a feverishly sweet dream left unshared.