What's your most preferred drawing program? (Original, credited to Mistalee.) (Original thread, credited to Vildano.)

I will not be including websites and mobile apps for this poll as they are not a computer program. (By my standards.)

I will only be adding the ones I am aware of, hopefully it is enough to allow everyone get see their program on this list.
Hopefully Atelier801 adds the feature to include more choices into polls.
[size=8]This is actually version two because "Page Timeout" got me from making so much choices.