Well, here are some things to think about that may influence your decision.
Counter service, Table service, signature, or mix?
A mix -dh loves food
Will you leave the park mid-day for a meal, or eat in the park you're in?
We arrive for rd, leave either for lunch in a resort or after lunch in a park
What are the ages and genders of any kids in your party?
No underage persons-just 2 big children
Do you need/want character meals? If so, which characters?
I enjoy character meals & dh comes along to appease me-any/ all characters
Dining plan, or out of pocket?
Regular dining plan
Picky or adventurous eaters?
That's really funny-I'm picky although I refer to myself as selective (I have both medical issues & i don't have a 'posh palate'
Dh is the total opposite & will eat absolutely anything & everything-he's says it comes from being the youngest of 5!!
Any favorites you have to visit, or first trip?
Jiko (as prev mentioned) is the only requested must do.
I like 50's PT
My favorite restaurant at wdw is blaze-So no problems with that as its cs.
Those questions aside, the hard to get reservations should be first. Cinderella's Royal Table, Be Our Guest, Ohana, Beaches N Cream, Le Cellier all go quickly so grab them first. There may be others in that category too.