This was done with no set parameters, so history and tradition definitely helped a few older, well-known venues (and a few of the more unusual ones likely also benefited), but BYU came in #31
The 5 just ahead of BYU were
26. Kibbie Dome, Idaho Vandals
27. Cotton Bowl
28. Kinnick Field, Iowa Hawkeyes
29. Albertsons Field, Boise St Broncos
30. Folsom Field, Colorado Buffaloes
And the 5 just after BYU were
32. Franklin Field, Penn Quakers
33. Rice-Eccles Stadium, Utah Utes
34. War Memorial Stadium, Wyoming Cowboys
35. Milan Pusker Field, West Virginia Mountaineers
36. Boone Pickens Stadium, Oklahoma St Cowboys