I don't care how ugly or boring they are. I'll take winning over style all day long.
And I'll take an ugly, boring win over an exciting, entertaining loss all day long as well.
Personally, I think a team that pays great defense is a thing of beauty. I enjoyed watching Wooden's UCLA teams play their aggressive defense and I enjoyed watching Bobby Knight's teams play shut down defense. Not enough teams play great defense and not enough coaches know how to coach it. That's why I like watching it and I appreciate teams that play it well.
Methinks you're looking at things through orange & maroon glasses.