That said, if asked to do a quick assembly on set, my go to is still FCP 7. I've tried X for personal projects, and I think there are some paradigm shifting concepts in the software, so it might be finally time to dive in and really get to know X.
Look, despite the ubiquity and low cost of Blackmagic Design's gear and software, Resolve is simply the industry standard for on set colour and post production grading. As someone who works full time on Hollywood feature films and television series (shot here in Toronto), I see Resolve (and ONLY Resolve) every day on set. The fact that they have added editing to free powerhouse software MUST be mentioned as users will be forced to transition somewhere.