thought this would make for an interesting discussion. As far as my personal list goes it would probably look something like this

1. 2014-2015 (14-1, National Championship W)

2. 2010-2011 (12-1, Sugar bowl W)

3. 2013-2014 (12-2, Organge bowl L)

4. 2012 (12-0, postseason ban)

5. 2011-2012 (6-7, Gator bowl L)