I have used in my life many different Linux distributions: Slackware, Red Hat, Ubuntu, Debian (professionally or privately). My private choice is the only one not driven by marketing: Debian.

You have three main Debian releases:

  SID (if you need to be as close as possible to upstream versions)

  Testing (the same as above but a few days after SID)

  Stable (you sacrifice the latest software versions for insane stability)

Which one did you use ?

And please don't mix Debian and Ubuntu.

Canonical is commercial company driven by profit (and CEO's bonus).

Debian is driven by community and (mostly) engineers.