2013 North Dakota State has a good claim to the best FCS team of all-time:
National Champions
15-0
Won at Kansas State
Ranked 23rd in Sagarin pre-bowl
Ranked 20th in Massey pre-bowl
Ranked 35th in the AP poll pre-bowl
They beat four very good teams in the playoffs by scores of 38-7, 48-14, 52-14 and 35-7.