Who has the best opening day?

Who has the best opening day in sports?  NFL? MLB? NBA? NHL? What about Golf? Nascar opens its season with its biggest race. The Daytona 500 is the Super Bowl of NASCAR.  Fox begins promoting that race in December to remind people of how important the race is. In fact the race is a career definer.  Dale Earnhardt raced there over 20 times before he got his one and only win and of course that is the place he lost his life.  Golf starts the year with a tournament honoring all of the winners of the events from the previous year in Hawaii.  There are 35 events or so and the only people invited to play are the winners from last year.  There have been some epic battles over there.  Tiger and Ernie is still etched in my mind when Tiger was at his best and so was Ernie.  Tennis has some warm up tournaments before the Australian Open kicks of their season.  Can't beat being in a warm climate to start a season.
College football and College basketball have unique ways of starting their seasons too.  In College football some teams play a winner take all game that could either vault them into national prominence or play a cupcake that helps them work on their offense and defense.  For example Michigan playing Alabama was a launch pad game for both.  Alabama is now the number 1 team in the land because of its dominance.  Oklahoma State defeated Savannah St. 84-0.  What could they truly learn ina game like that.  Savannah St. took the money and ran. They next play Florida St. for another payday.  They need the money because money makes the world go round in all sports  right?  In College basketball some teams play exhibitions to figure out starting lineups but then play in tournaments to get ready for their conference season.  Some tournaments are springboards to a great season and some dont have an affect on a season at all.  UCONN won the Maui in 2011 and that launched Kimba Walker as a star and eventual national champion later that season.  Duke won the Maui last season and even beat national runner up Kansas in the final, but it meant very little for their regular season. Still just hear Dick Vitale getting excited or hearing Brent Musberger say " You are Looking Live" gets the hair standing on my neck. 
The Big Four sports try to turn their opening nights into an event.  They invite the hottest and most popular acts to perform before the games or after.  They have fireworks and make the entire game an event. The NFL and NBA try to put out marquee matchups that will make people want to watch because of the importance of the games.  Tonight for example, the Giants and Cowboys game is extremely important for both teams.  They are in the same division and any edge to the victor is immense.  Baseball and Hockey have long seasons and the opening night matchup is more about seeing who is fresh and new than setting a tone for a season.  Baseball has the full pageantry of parades and bunting around the stadium.  John Madden used to go nuts over how jealous he was that baseball makes opening day a celebration of the sport.  Football has caught on because of the times we live in.  They honor true heroes in the military or law enforcement and celebrate America's freedom in being able to play these sports because of the sacrifice made by these men and women.  Hockey is Canada's game so i appreciate what they do in the Canadien cities. 
So what is the answer?  The answer for me is Football.  Because baseball, basketball and hockey have so many more games the first game is not as significant as the first game in the NFL.  The NFL has lately spared no expense in putting on a show three hours before games to make the fan experience amazing.  The games may be so great but it is probably the only time all season a bad team has an actual chance of stealing a game because of pre season football rust.  The ring ceremony in the defending champions stadium inspires performance.  The ring ceremonies in the other sports are long and tedious.  We are know the affect of seeing the trophy being brought on the field.  I know the season is 17 weeks long in the NFL but every loss is magnified. Teams are jockeying for playoff positions from the beginning of the year.  Think about how last year finished in the AFC.  There were 6 teams still vying for a playoff spot on the last day of the season because of random losses that teams suffered to teams with similar records.  Three teams from the AFC North made the playoffs last year because they beat up on teams outside of their conference. The NFL is King for a reason!!!