I can't say there's a style of pizza I don't like, but my favorite is Chicago stuffed pizza (like Giordano's).
A slice is going to be maybe 3" high and the sauce and toppings are generally on top. The cheese is decadently thick and will spill out on the sides of the slices when their neighbors are gone...kind of looks like the pie is deflating.
The crust is not super thick at the center of the pie, but as you get towards the edge is thickens up and your last few bits will be kind of like eating a garlic roll with a bit of cheese on it.
One slice should probably be an entrée when you get down to it and a friend told me he was horribly ill after splitting a large with one other guy. I think my record for slices is three, doubt that I ever did 4 even as a teenager.
The neighborhood places were always the best, but Giordano's was darned good. Be aware that the cooking time for a stuffed pizza is quite long, didn't get to have some last time I was near Chicago with the family because we couldn't really wait so long for our food.
Pizza like Malnati's and Uno/Dua in the Loop have some similarities to stuffed, but really aren't the same thing...I still like them a lot, though. Going to a chain Uno is nothing like going to the real one in the Loop.
AFAIK my favorite type of pizza doesn't exist in New England...that's fine, plenty of good pizza here.