Pizza is highly subjective: Chicago natives prefer thick crust, New Yorkers like thinner crust with less cheese and more sauce, some seattleites like thick crust with lots of toppings.
That said, in answer to the person looking for renton Highland's best pizza, I've got to say Angelo's on NE 4th.
I'm originally from New Jersey, so the crust is everything. Needs to be thin, crisp but also tender, and Angelo's meets that criteria. Plus their sauce is home made and a little spicy.
A runner up is Amante on Sunset.