I typically prefer reduced patterns, but I would go for one with a more busy pattern if everything else about it is nice.

So for a firefly I would be looking for a lemon yellow color, tons of flames and blushing, a reduced pattern, and a white faded head, and for a spotnose I would be looking for one with a busy pattern, light stripe on the back, crazy head pattern, moustache, and light body color.

To me, butters look like mojaves and lessers put together