I didn't bother putting any effort into it since I was unable to watch any game during the season and knew I would be unable to watch a single minute of the tournament.
You're missing out. March Madness is the greatest sporting event in the country IMO.
Go Big Blue!
I know, I know. Trust me, it wasn't by choice.
Working nights and Sundays has interfered massively with my sports viewing. I was only able to watch 2 Steelers game live, did not watch the Super Bowl live for the first time in 20 years, and didn't see a single minute of march madness.
Anyway, I prefer doing brackets round-by-round, but I understand it is logistically difficult for the masses. It's rather boring to fill out the entire bracket in the beginning and not get to guess at the interesting and unique match-ups that present themselves throughout the tournament.
But that only really works if you're comfortable operating on the honor system.