March Madness Bracketologists: What Teams do you have a hard time

[Mayberry Machiavelli]

picking for or against, because of unfamiliarity with the team or the conference?

Me (teams that are good enough to frequently be in the tournament, but I never know anything about 'em):

Xavier
Murray State Racers
UTEP
Cincy (although they are often a high seed, I'm never sure how legit they are)

On an unrelated front, does anyone play full court pressure D anymore? Did this somehow become obsolete, or outlawed, since John Thompson, Nolan Richardson, Pitino & company either won championships or made Final Fours with it?