My reason for of picking S4 is that game at least flows and has consistency. Its not good by any means, but I at least 'get' how S4 works. At its best, S4 is mediocre. And at its worst... Well aside from the mobile exclusive levels, it's tolerable. Cyberspace on the other hand is consistently a turn off. Every time that I play one of those levels, I feel like I'm fighting Sonic just to make him move purposely. He's slow as molasses in 2D, and somehow both twitchy and unresponsive in 3D at the same time. I don't get it. The sense of any flow or rhythm too is just busted by the way that he doesn't carry any momentum in the air and stops instantly when you let go of the analogue stick (or the opposite if rolling...). Everything that I ever criticised S4's controls and physics for is amplified in Cyberspace. Sonic 4 has a crappy and unwanted homing attack? At least the game doesn't pause for half a second every time you hit an enemy with it. I'll never, ever defend the horrible mess that Sonic 4 is, but imo it's just the lesser of two evils when compared to Cyberspace.