What I mean by that is I'll fill out one picking the winners of 1st round, then 2nd round, then 3rd round, etc. The other one I will fill out by picking championship game first followed by final 4, then elite 8, and so on. That 2nd approach is going more off of who I think the best teams are and doesn't consider matchups.
If I do any beyond those 2 then it's typically just me clicking the "randomized" button to fill out the max brackets I can submit for the particular contest. I don't really consider those to by "mine", though.