Is there any more-or-less agreed-upon ranking of the difficulty level of the various (American Style) dances? I would like to pick some of the easier ones to concentrate on first, to build up my confidence level, before tackling the more difficult ones. Perhaps the following, in order of increasing difficulty???:

Meringue, Single Swing, Slow Dancing, Foxtrot, Waltz,
Triple Swing, West Coast, Tango, Rumba, Cha Cha.

Not sure where to throw in Salsa or Mambo. I'm thinking that some of the things which make a dance challenging are the complexity of the basic step, number of rhythms (Slows, Quicks), rotation, traveling, Cuban motion, footwork, and difficulty of lead and follow. Thoughts?