Years of sporadic research have convinced me that the worst chain delivery/takeout pizza is still better than the best frozen pizza.
Someday I hope to find an exception. 
That’s my take too. I’ll still eat frozen more often, just for the price and convenience, and occasionally something will stand out — Home Run has an interesting crust, or “hey, the sausage/pepperoni on this pizza is actually decent.”
And since I buy frozen for price and convenience, Aldi’s refrigerated (not frozen) is a standout item for me. The flavor is better than most frozen pizzas, and the economy is amazing. Five or six bucks for 42 oz. — almost three pounds of pie. I get the impression that Walmart offers something similar, but I’ve never tried it, since Walmart is not on my way home from work, and Aldi’s is. The pizza is too damn big to to stay in the fridge overnight; it gets cooked within a few hours of purchase.
I have to respectfully disagree with that assessment. Yes, 90% of chain delivery pizza is better than 90% of frozen pizza, but there are exceptions. Frozen Home Run Inn is one of them.
I’ve run across some pretty awful chain pizza. IIRC it was Straw Hat Pizza that once presented me and my family with pizza that was basically a thick slab of cheese, barely any sauce and crust that was so hard it had to be hammered against the table to break instead of cut or bitten through. It ended up going straight to the garbage.
And frozen pizza has gotten hugely better over the years, I’ll say that too. I recall the time I once ate most of the cardboard some frozen pizza came on because I genuinely didn’t notice the difference between it and the pizza. These days it’s more inferior pizza, rather than “something approximately food-like that resembles a pizza if you don’t look too close”.
I rarely buy frozen pizza – I prefer the fresh, take&bake kind – but I’ll make an exception for Lou Malnati’s. It’s small (8" only), but deep and tasty. I think they put a slab of cheese on the bottom. They ship in the USA, although it’s pretty pricey. Much cheaper if you live in Chicago.
That is correct, and that is standard for Chicago deep-dish pizzas. From the bottom up, it’s dough, then slices of cheese, then sauce, then toppings (which may also include shredded cheese.)