Which is the best console (Sega)?

[Threeboy]

genesis = megadrive.

Which is the best Sega console?
If I forgot any, lemme know :)

[Gazor]

What!?!? No Mega Drive okay then. Sega CD

[Shamus]

I've never owned any of them or played them for more than 1 minute..

What!?!? No Mega Drive okay then. Sega CD
SMS = Sega Master System.
is that the same thing as "Mega Drive"?