First post on the board--must be in a dance thread! :-D
To skate--I only know the first three so far, but it's the Canasta Tango. My coach says it's the best of the three for my style, anyway, though the Rythym Blues is coming along. (The Dutch Waltz is kind of eh for me. I can do it, but it's not quite my thing. However, I'm to do it and "Do it like it's the Viennese Waltz." My coach is kinda a nitpicker, but I love him anyway.)
To watch...ooh. Well, I'll watch any ice dance...I suppose any tango or the swing. If it's one of the top couples, I don't care what they're doing. It may make me weird, but my clearest memory of watching the '94 Olympics is the ice dance, because then they showed some of the compulsories (probably because of Torvill and Dean) and I remember being fascinated, even if I wasn't quite clear on what they were doing.