That is very subjective and depends on what you like to eat and how your 13 year old eats. But here goes - all pre-Covid, all TS and not cheap. We tend to not eat at a lot of QS except to grab a snack.
At Epcot - We love Spice Road Tables and the main restaurant in Morocco as well. The food is a little different in the main one but we like it. We pretty much eat at any of the countries in Epcot though except Germany and that is because it was a buffet and I don't do buffets, I don't eat enough for the price they charge. We also like almost all the QS there in the countries, we never eat outside of WS there.
At AK - Tiffins is our favorite, again the food is a little different but that is why we like it. Bonus, we also love Nomad Lounge. We have eaten at the Quick Service in Pandora and it was o.k. and would probably the QS I would recommend.
At HS - we love to sit at the outside lounge at Brown Derby, they aren't serving food out there right now but we also love the inside dining there. QS is tough at HS but the one in Star Wars is not bad.
At MK - Skipper's Canteen for us - there is a pattern I guess, we like different food. We like Pecos Bills, you get a lot of food and it can easily be shared.