The issue isn't really the weather as much as it is the distance. Columbus is a 13 hr drive to New Orleans. Tuscaloosa is a 4 hour drive to New Orleans. A lot of people don't want to do a 13 hour drive, so the only option is to fly, which is too expensive for many people, especially when you have to pay for lodging and a ticket too. People from Alabama can just hop on an Amtrak train to get to New Orleans. SEC teams have an advantage since a larger percentage of their fans can afford to go to these games because they don't have to spend as much or go through as much trouble to travel to the games.
Every bowl season, the Big Ten plays 3 bowls against the SEC, all played in the Southeast. All the Big Ten's tie-ins against the Pac 12 are games played in California. MSU's New Year's 6 game is against Baylor in Texas. For the lesser Big Ten teams, this is a big disadvantage because their fanbases are less willing to shell out thousands of dollars to travel for a normal bowl game.
That being said, Ohio State's fanbase is huge and always travels well, so when it comes to attendance, OSU should have nearly half of the crowd anyway. I don't think that the crowd in attendance will have much of an effect on the result of the game. My complaint is just for the Conference in general.
I understand that the bowls are in locations where fans would want to travel in the winter, and this is going to be a disadvantage for the Big Ten. However, would it be so difficult to have the Big Ten/SEC matchups played in Big 12 territory? Both fanbases would have to travel equally and they could still have the games in warm weather. It would also be nice for the North to get some big bowl games once in a while in places with domes like Minneapolis, Indianapolis, or Detroit. Obviously, outdoor games this late are not an option.
I'll be taking a 29 hour train to New Orleans from Philly for the game, so I'm not opposed to travel, but I know many other people can't or won't do this. The train even stops in Tuscaloosa
Looking forward to a fantastic game. I've been looking forward to a matchup with Alabama for a long time. Winning a National Championship without beating Alabama just wouldn't feel right. Hope it's a Classic. Best of Luck, Tide fans!