That's a great idea! When you make the ADR's they could ask you what you prefer. We're not character people and my kids go to the restaurants at Disney for one thing......TO EAT!
I'll never forget when I was able to get ADR's at Cinderella's Castle for dinner and it was our first night there...we were all tired from the flight and it was a late reservation. We finally got our table after waiting another 45 minutes and my kids got their meals and then all the sudden the princessses starting to make their way around the room. Well, my 9 year old daughter, who was already really cranky at that point, turns to Cinderella when she arrived at our table and said, "not now, Cinderella, I'm just trying to have my dinner" as a chicken nugget is hanging out of her mouth. Cinderella was very nice and moved to the next table. So, from that point on, after quite a few similar instances at other character dining venues, we learned our lesson and choose dining without characters