I use whatever I get cheapest. Right now for 12 ga it is Win AA Plus but I have used Hodgdon Titewad, and will likely go back to Alliant Promo. I have also used Red Dot, Clays, Solo 1000, American Select, International Clays, 700X, Rex I and II and Green Dot with success. I still use Green Dot for long range target loads and light game loads. I have not seen any difference in scores with any powder so I use what I can find for cheap. I usually use Unique or Herco for 16, 20 and 28 ga but again have used and liked Universal and Inernational Clays, SR 4756, Win Super Field, Hodgdon HS-6, and HS-7. I also like these powders for field loads in all guages. I do not use Blue Dot much any more as I have gotten some Longshot. It works well for field loads and modest velocity target loads in the smaller guages. I really don't have a "favorite", they all work.