I like Deltas, PKs, and VTs. The reason for liking deltas is because while they don't have the excessive finnage of a HM they still look very graceful, same with plakats. And VTs are simply divine :)
I'm obsessed with finding a good Butterfly or Marble. My absolute FAVOURITE pattern/colours are turquoise or purple red marble. But I also love coppers, opaques, black, extended red, yellow, orange, true green (not turquoise green, FOREST green), blues without red wash, and of course pink! And anything with dalmation spots.