Just thought I would check some stats based on this site:
AP Women's Basketball Number 1 vs Number 2 - College Poll Archive - Historical College Football and Basketball Polls and Rankings
(cool site and already updated!)
According to their records (AP poll only) Uconn is 7-1 when ranked #2 and 15-2 when ranked #1. Baylor is the only team to beat them as the #1 ranked, and TN and ND are the two teams to beat #1 Uconn as the #2 ranked team.
In total there have been 60 such games and Uconn has played in 25 of them or 42%. The record for the #1 seed is 37-23 for a 62% win rate. Uconn's win rate as the #1 is 88.2% and as the #2 seed is 87.5%.
Some other notable teams:
Tenn - overall 10-12, as the #1 ranked 5-5 and as the #2 5-7
Stan - 1-7, as #1 1-2
ND - 2-6, as #1 1-2
Bay - 3-1, as #1 3-0
Duke - 3-3, as #1 2-3
SC - 0-4 as a #1 0-2 (3 losses to Uconn and one loss dates back to LaTech in 82 when LaTech was the #1
La Tech - 9-4 as #1 5-1, as #2 4-3 - last victory 90 season, last game 98 season both as a 2 seed against TN.
Old Dominion 4-2 as a #1 4-0 All games 82 season and earlier.
USC 2-2, as a #1 1-2 as a #2 1-0 All games 83 and 84 seasons.
TX 2-2, as a #1 0-1 as a #2 2-1. Last game in 1988 season.
TN record against Uconn as a #1 is 0-1 and as a #2 is 1-4
ND record against Uconn as 1 #1 is 0-2 and as a #2 is 1-3
Bay record against Uconn as #1 is 1-0 and as a #2 is 0-1
SC record against Uconn as a #1 is 0-2 and as a #2 is 0-1
Stan record against Uconn as #1 is 0-0 and as a #2 is 0-3
Duke record against Uconn as a #1 is 0-1 and as a #2 is 0-1
NB according to this site Uconn' overall record in 1 v 2 is 22-3 (not 23-3)
And correcting my previous post LaTech 4-3, USC 1-0, and TX 2-1 are all above 50% when playing as the #2 against the #1. There might be a few others that have one or two wins as a #2 against a #1.