First would probably be what the EMH days are likely to be. What park will be at that day, likely.
Second food. What kind, how good it is, etc. Maybe even are we talking breakfast, supper. A menu probably doesn’t enter at this point.
Third, and it’s a close third, would be fun. How much fun is it to eat here.
Fourth is probably how soon do I need to reserve, if at all.
Generally speaking, if we’re talking sit down/table service meals, we already have a pretty good idea of the cost. If we’re talking to folks who’ve been before, we might vaguely discuss a general ballpark estimate figure. If discussing with folks who have not previously visited WDW before, the discussion has to be more detailed. Unless the person is familiar with other vacation destinations and is aware that hamburger values vary.
Our extended family generally figure out where we want to eat, what sorts of experiences we want. Then, probably even after we’ve made ADRs, we’ll talk trip costs. Then we’ll be perusing menus unless the meal is a buffet.
After resort and tickets, the only other cost is food. We rarely do any add ons. Even snacks. We used to do 3 table service meals a day. As Disney has added parks and as they have gotten busier, we usually do one table service a day. Unless we have a 4 day ticket with a 7 day resort stay! And then we can do more table service.