Ranking the best teams depends on the timeframe. From the “Point System for Nationals finishes” I created, below are the results for mostly 10 year periods (plus all-time at the end). The College Women’s Division started in 1987.

Here’s a link to the All-Time Top 10 College Teams on the Ultimate History website showing the details of where each team finished at Nationals each year and how many points each team received:
www.ultimatehistory.com/stats/team-all-time-rankings/

 

1987-1989 Women (3 yrs):
1. UC Davis
2. UCSB
3. Michigan
4. Carleton (t)
4. Oregon (t)

1987-1994 Women (8 yrs):
1. UCSB
2. UC Davis
3. UNCW
4. UC Berkeley
5. Carleton

1990-1999 Women:
1. Stanford
2. UNCW
3. Carleton
4. UCSB
5. UC Berkeley

1995-2004 Women:
1. Stanford
2. Carleton
3. UNCW
4. UCSD
5. Georgia (t)
5. UC Davis (t)

2000-2009 Women:
1. Stanford
2. UCSB
3. Carleton
4. UCSD
5. UC Davis

2005-2014 Women:
1. Oregon
2. UCSB
3. Stanford
4. Washington
5. UBC

1987-2015 Women (all-time):
1. Stanford
2. UCSB
3. Carleton
4. Oregon
5. UNC-W
6. UCD
7. Washington
8. UC Berkeley
9. UBC
10. Michigan