[mathgenius]

Tango is the most free: every step is improvised. Maybe at the beginning the focus is on sequences (of steps), but you quickly leave this behind. So the "nerds" like this because you can do all kinds of creative stuff, without having to stick to "one-two-cha-cha-cha" or whatever. For some people this is too much, and they need sequences, but for me I am hopeless at memorizing the moves but am good at just negotiating the basic mechanics of the situation. Tango is also very "introverted": from the outside it doesn't look like much is happening! (i'm not talking about performance tango obviously..)

I would suggest you try whatever dance attracts you. For example, consider if you like the music. You might like swing, but I find it's too energetic & bouncy for me. Salsa always seems to have the music up way too loud. If you do try tango, stay away from "ballroom" tango, the real one is the argentine tango.

But yeah, be prepared to be not good at it at the start! It should be ok though, especially if you enjoy it, it wont matter how many moves you can do. It's all about letting go of the thinking mind and just being present to the moment.