I have found the biggest factor in pizza is learning how to condition the dough so the glutens are perfect. I tend to make a pretty wet dough and only use water, yeast, flour, and kosher salt. As I work it into a pizza round I use plenty of flour so it dries up a bit at that step.
I have had very good luck with Gold Medal AP flour and for the price and don't see stuff like King Arthur as enough of an improvement to justify they price.
I set my oven on bake and run the temp as high as it goes...prob around 600...and bake mine on a stone, takes about 4 minutes to cook. I have yet to perfect cooking on my Big Green Egg, usually gets the crust done too fast and I prefer to not have the smokey flavor on most styles of pizza.
I intend to experiment with beer yeast...just haven't had the time. So far, I can say that US-05 makes a fantastic, almost perfect crust in all ways, but like the beer it produces, it doesn't bring flavor to the dough. So, I want to play with some other strains and see what happens. Oh yeah, and using yeast from an IPA will bring a definite and IMO unpleasant hop character to the pizza.