Hey, hey, screw you. Air Guitar is MUCH more competitive. I mean, yes, starcraft is one of the if not the absolute most competitive video games ever.
HOWEVER: Competitive Air Guitar is in a league of its own. MASSIVE, and I mean MASSIVE skill differential in multitudes of areas: Air plucking, air fingering, invisible riffs, non existant behind the back, hair flips, torso thrusts, being on beat, crowd motivation, dancing while doing the aforementioned, etc. etc. etc.
Just... Look, you see the recent AGWC (Air Guitar World Championships for all you poorly educated people out there) semifinals, the match between Bryce Sprangstein and Jimmy Hendrich? Not only did it perfectly summarize the various metagames of those two players regions, with Bryce going with the much more controlled, refined style of the English Air Guitarist, while Jimmy epitomized the wild and ambitious flavor of the Australian players, it showed how, even today, after quite literally DECADES of professional Air Guitaring, innovations still occur on a nearly weekly level. To start, we had Bryce reviving an old standby, the full air chord, but with a modern twist, transitioning straight into a double invisible rift. A previously unforseen twist on the old classic, yes, and something game-changing to be sure. But, and this was the real amazing part of the event, the huge innovation came from Jimmy, who airstrummed not a single but a DOUBLE, yes, you read me right, a DOUBLE necked airguitar. He was pretending to bust out rifts that had never been previously considered possible to pretend to create. Althugh Bryce fired back strongly, especially going into the final technical portion of the air guitar off, Jimmy's air innovation just had him on the back foot from the start, PROVING, beyond a shadow of a doubt, that even after decades of intense air guitar competition air guitar is THE single most competitive game known to mankind.
Oh, and Starcraft is pretty competitive too I guess.