Creighton: 6 NCAA Tournament wins in the last 40 years.
BYU: 11 NCAA Tournament wins in the last 40 years.
Last Sweet 16 for either team:
BYU-2011
Creighton-1974
BYU: 15 NCAA wins all time plus the 1951 NIT National Championship
Creighton: 12 NCAA wins all time
They're not milquetoast, but BYU is a bigger name and has better history.