Powder day because of the year we had and the weather recently. Although if it was my mountain for a pow day but a really nice park like P.C/brighton/keystone/mammoth i would choose the slush and sun.
hills is not steep enough for a lot of powder, so Im going to go slush. Only if that slush is an infinite amount and does not affect the time the hill is open.
Sorry to post again but I personally don't care what the weather is like(ie. Rain, Snow, Wind, Blue, Gray) of course blue is best it makes little difference. It is for me a question of slush vs pow, regardless of weather.
How is this a question, you can't compare powder to slush because powder is infinitely better, and I personally don't care too much whether its a bluebird or grey day as long I am warm enough.