Re: the best pizza?
normally a good rule of thumb for a pizzeria is to check how they do the 'bianca', the white pizza with no topping, only a bit of coarse salt, rosmary and tiny bit of olive oil. hard to get it here tho, normally the margherita is good for this as well. if the most basic pizza is nice it's because they know how to make the dough and use fresh tomatoes and mozzarella.
In Da Pino they do this Regina pizza with fresh sliced tomatoes, buffalo mozzarella and rocket leaves on a plain base, it rules.