Mine vary. I am a good 'rough' carpenter, but am weak on the finish carpentry stuff. I am okay with electricity but don't like messing with it. Anything involving an internal combustion engine goes to a shop. I dont even change my own oil., so I am solid 5-6 overall. Plumbing is good. "Shit runs downhill" is your first lesson, my Dad (who worked in the plumbing industry) used to tell me.
What I am good at is troubleshooting. If something no longer works, I am good at systematically working through to find the problem. Even without Google.... it comes from working my way through University in an Air Conditioning repair shop and working and fixing dive gear for 30 years