Uncleromulus is right - the tables inside the restaurant main area of CG are no worse than the window tables. In fact, I like the window tables less. Reason being - in order to see the view, you put your back to the restaurant - including the show kitchen. There is a ton going on in the restaurant, and if you are a people watcher you can see more from a non-window table.
I voted for CG over AP. We ate at both on our honeymoon, once more at AP, and countless other times at CG. It just doesn't get any better to me than sunset out the CG windows/balcony with a cocktail and lingering over a long meal. Tell the waiters you want to take time out for the show and linger. They will pace your food accordingly (and make sure it comes out hot regardless, a rarity at Disney). They don't mind if you take your drink and step away to look around. I find the service at CG to be head and shoulders above our AP experience.
As for Wishes, this is no replacement for seeing them from inside the park. But if you got a 7:30 ADR, you should get there early (like 7 or so) if you are determined to see the show from your table at 8. Friends have gone at 7 and been immediately seated. But those with 7:45 ADRs were made to wait and wait - because no one wants to give up their table that close to the show. Right after the fireworks the place clears out and gets MUCH quieter.
Your best bet, if you want a quiet dining room for initimate conversation - either wait and beg for a wine room/EPCOT view table at CG, or go to AP instead.
I think you will see when viewing the menus on allears.net that AP's food has a very northwestern flair. CG is more continental and has a wide variety. What kind of food do you prefer? Sushi and flatbreads are only at CG. Salmon and buffalo are at AP.
As for Jiko- I find it to be hit and miss, but it is a must do for DH. And the filet and mac n cheese with cabernet sauce is TO DIE FOR!!!! Love the dining room (not as quiet as AP, but more intimate than CG). And the decor and setting are quite unique. Allow for time to go outside and view the animals through night vision before or after your meal.
Also, with AP you can finish your meal and enjoy the beautiful landscaping of WL, walk to the boat dock and see the Electric Water Pageant (with lights and music) at 9:35. You must leave the restaurant to see it, though.
Well, if all that "advice" doesn't confuse the issue, I don't know what will.
Good luck.