Indeed UConn is not the Tennessee LVs of the 2009 tourney. That was a 10-loss team, a five seed.
I think the St John's loss has people spooked a bit. UConn hadn't suffered a loss like that in a long time. Whereas the Baylor and ND losses were understandable, that one was out of the blue and reminded people that yes, on any given night, even UConn can lose to teams it shouldn't. Fortunately, the evidence seems to point to the possibility that the SJU loss, in conjunction with the second ND loss, may have lit a fire under the girls. KML and Bria have bounced back without Tiff regressing, while Stef seems to have found her niche on this team as well.
So yes, anything can happen on any given day, but it would take an exceptionally poor performance by UConn to lose to either Penn State or LSU. And there's nothing wrong with stating a preference; you're not on the team, and empirically, many people's preferences have little to do with the teams per se (see: residual dislike for SEC, "I live in PA", etc.).
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So that's 11 easy wins, five close wins, and two losses (one of which being an upset). Three of the five close wins portended doom in the next round; in fact, all three of those teams were deeply flawed (2006 and 2007 were teams that struggled to have the right pieces with the right amount of experience, 1997 was suffering from the Shea Ralph injury hangover). One went on to win a NC, and one lost in the national semis.