Adobe revealed record quarterly earnings on March 17th, with $1.38 billion in quarterly revenue ($5.5B annualized) and 4.252 million Creative Cloud subscribers (us included).
Of course, Adobe is strongest in document handling and photography but every subscriber has access to the entire Creative Cloud suite. I believe the integration between the video and audio apps is one of Adobe’s strengths in the creative TV, film and video space.
If I had to place an educated guess, I’d say there are more active Premiere Pro CC users than Media Composer active users, but not as many as Final Cut Pro X.