Grass greener, or at least better, in Arizona

FORT WORTH, Texas -- The grass field at University of Phoenix Stadium slides outdoors on tracks, distinguishing it from other playing surfaces.

NFL players also liked playing on the surface, ranking it first among the 18 grass surfaces -- in keeping with previous rankings. The grass at San Francisco's Candlestick Park ranked 12th. Moisture can sometimes make for slippery conditions there.

Seattle's FieldTurf surface ranked fourth among 13 artificial surfaces. The AstroTurf at the Edward Jones Dome in St. Louis ranked 10th. The Edward Jones Dome switched from FieldTurf to AstroTurf because the latter surface could be stored when not in use. The Dome previously required a new surface each season. That surface ranked eighth two years ago, when results from the previous survey were released.

NFC West surfaces ranked third on average among surfaces in the eight divisions, both in average ranking and average percentile ranking.