I voted March Madness.
While I LOVE the NFL, the Super Bowl is far from my favorite NFL game to watch. I much prefer the 2 weekends played prior to the Super Bowl, week 1, and Thanksgiving. SB is so commercial and Joe Public.
I also LOVE the PGA Tour, but the Masters is not my favorite, and nor is the British Open. I would rank the 3 Tour Championship events ahead, as well as the The Players, the US Open, and the PGA Championship. Heck, I'd rather watch The Travelers over the Masters, since I've actually played the course. Masters is a bit high brow and Joe Public.
Tour de France? Olympics? Shouldn't even be on the list. How did NBA Finals not make the list?
LOVE the Derby and The Belmont Stakes. I watch religiously or attend every year. I watch the Preakness as well, but it's so blah.
For baseball playoffs, I really only watch the World Series if the Red Sox, Yankees, or Mets are playing.
NHL Playoff are awesome, but as a Bruins fan, I only watch their playoff games. Last night was great til the 3rd period.
My rankings would be:
1-March Madness
2-NFL AFC/NFC Championship weekend
3-NFL Wild Card weekend
4-NFL week 1
5 and on - a toss up