You asked for opinions and even though you are leaning away from it . .I'd steer you back towards the BBQ. It is "picnic fare" of hamburgers, ribs, coleslaw, etc but it's good for what it is. Softdrink refills are plentiful and unlimited access to ice cream treats. There is plenty of room to move around and it's the dancing and having fun part without being on top of all the other guests. There is a man who does rope tricks and it's amazing to watch, they have all the kids sit on the ground so they have a good view. Both my boys (current age 6 &7) are always wanting to be cowboys after the event. I love that it's low key for the parents while the kids actually get to be loud and active. We have gone 4 times with them and it's the one thing they ask for each time.
Chef Mickey's I have been 3 times over the last 10 years. I have always been unlucky with how long it takes us to be seated. Even with ADRs we have to wait 20-40 minutes so I'm already irritated by the time we sit down. Then it's a struggle to get the food and not miss the characters. It's a lot of kid energy and there is a moment when everyone waves their napkins around and gets kind of crazy. I always leave that place stressed out and promising not do it again. I have tried it once for each meal and found it similar in those regards for each. But, I love Mickey and sometimes it's just what works best in our plans.
If you don't care about missing out on characters, Trail's End is the best value on property! Love it, and especially if you are wanting to see the headless horseman anyway it makes lots of sense!