Greetings from the land of mediocre chain pizza, I have some opinions on this topic. They differ greatly from DH's preference for the above mentioned slice resulting in a river of scalding grease to your elbow. Yet we end up stopping for a slice before we get to his mom's every time because he misses it so.
Domino's world headquarters basically across the street from my office. We organized a group field trip to investigate their corporate cafeteria and were disappointed pizza was not abundantly available and free. Domino's is delicious when free at the end of a race, which happens more frequently than would may imagine. We name our arena after the worst pizza that is loved by high school and college students willing to eat soggy cardboard for $5. This was the first non-homemade pizza I ever had because my mom was not going to pay for pizza, and it was not a good introduction. The smell of Jet's makes me want to vomit. Hungry Howies is only ok with garlic butter crust AND when free. Our square pizza baked in a cast iron pan is amazing and I have not found anything like it. Our local chain, Cottage Inn is staffed with people who will give my kids extra pepperoni on the side for which I will continue to love them. But Pizza House. I love you Pizza House. I love that you tolerate drunk college students, that you will deliver this mom who is homebound with sick kids a 6 pack of oberon with that pizza and salad. I love you.
In the category of 'frozen pizza' I would vote for the terrible rectangle served in elementary school solely for nostalgia, but I would purchase 'Home Run Inn' out of nostalgia for my time working outside of Chicago.