Everyone can tell you what they like but at the end of the day it should be about what you like and what possibles combos you can make that you like. None of those are bad choices, it really just comes down to what you like. Enchi's are hot, they're combos are hot but they're also coming down in price. Where as Orange Dream isn't seen too much. Clowns are cool, not a very commonly seen morph either, which is why they are still fairly expensive. But they're recessive so they may take twice as long to see good results. It's really up to you.

IMHO every collection should have, even if it's in a combo, Pastel, Enchi, Yellowbelly and some sort of BEL gene (Lesser, Butter, Mojo, or one of my favorite, Mocha).