Now, I love both old and new sonic. And this war has got to stop. At the very least you shouldn't yell at someone for saying both. (Happened to me twice.)
I'm starting to feel like an endangered species. Why do we need to fight over which Sonic is better? He's still the same Sonic. If you want a 2-D platforming romp they are still releasing them; Sonic Rush, Sonic Rush Adventure, Sonic Advance Series. As for the newer Sonic fans you have many deep and beautiful games to choose from; Sonic Unleashed, Sonic 06, Shadow the Hedgehog.
There's something for everyone. And I, being a fan of both find the constant fighting meaningless. Why can't you just try and understand eachother?