Best facilities I've seen based on following my son's team the past few years:
*UC Irvine: Best Infield grass playing surface
*San Diego State
*University of San Diego (New Facility)
*Pepperdine (view of Pacific Ocean, but the field was very average)
*Cal Poly SLO
*Oregon State
*Oklahoma State (nice facility & great fans)
*University of Nebraska (see Oklahoma State)
*AMERITRADE PARK (No Brainer...and a capacity crowd of 24K vs. Texas was fun.)
*Didn't play, but visited these impressive stadiums this season...Wichita State, Texas, Oregon Ducks, & Oklahoma Sooners.
*2015 Season looking forward to Fresno St, Cal, & the new Minnesota Gophers facility.
I've only seen them on TV, but obviously the SEC schools are in a league of their own in terms of attendance & facilities. Averaging 7-10K fans per game is insane