I am hoping to get a good thread going with lots of advice on HOW to go about selective breeding. Lots of people, including me, say it is important.

But when it comes to selecting animals, what do you look for? Obviously it is important to look for animals that you think look nice, but sometimes what catches your eye might not be the best thing in your breeding project.

Any particular tips on what look(s) in a normal make a good match with which morphs?

How do you decide who to pair with whom? For example, if you have 2 pastels, one you like for tons of blushing, and another that you like because it has really bright yellow that contrasts with the dark areas that have almost no blushing, those might not make the best pair.

There are probably aspects of this I haven't even considered yet, so please feel free to add anything even if it doesn't directly answer one of the questions I asked.