A contrived special effects one?
C&C has, I'll admit, some merits. At about 50000 versions, it damn well should. However, it isn't even close to being as cool as many of the less mainstream strats out there, and the "wow" factor of anything they do is hampered somewhat by the fact that
a. If they've got it, odds are they've had something that comes close in the last half-dozen games
b. If they've got it, it's an isolated goodie in what is essentially a series of tank rush games with all the strategy and mental challenge of hitting something with a hefty stick after traveling through a simple maze, then hitting it with a hefty stick while traveling through a simple maze with slightly more things to hit.