BEST TIN CRUST PIZZA
I have not made an exhaustive search, but here are my choices:
1 - Amelio's at Milton/Ste-Famille
2 - A butcher shop/café (believe it or not) near Jean Talon market. I forget the name: go to the southwestern corner of the market and head one short block south (Mozart St?). Fancy butcher shop/grocery with a little seating area near the front. They have really good pizza by the slice and would probably make you a whole one. Also rice balls and various other yummy stuff.
3 - EuroDeli (St-Laurent/Prince Arthur), if it's fresh. If not, they warm it up in the microwave and thus spoil it, IMO.
For reference, I am not at all impressed with the expensive little wafers they call pizza at places like Pizzadelic.
Amelio's is definitely one of the best, but it is absolutely NOT "thin" crust pizza. It is very thick and cheesy, sort of "Chicago style."
Prato on St. Laurent (just below Napoleon) makes an excellent thin crust pizza.
Il Focolaio, on Phillips Square (Downtown) also makes a pretty good thin crust pizza.