I've used most of the popular digital cinema and broadcast brands including Sony, Red, Panasonic, etc, but my personal weapon of mass creation is the Canon 600D. This demo reel, specifically, was shot all on my 600D, which provided of course, its own unique set of challenges including color space limitations, noise, and field of view constraints as effect of sensor size. These are all challenges I saw as formidable and no excuse for failing to pursue a professional and cinematic look.

Weapons of mass creation