I know it's not popular on this thread, but I have to throw in our vote for Garden Grill! We love it - it's been our arrival night tradition for years, and our boys' favorite restaurant at Disney.
The character interaction is great, and it's a relatively relaxed setting for Disney. The restaurant rotates (very slowly) so that the kids can see different scenes from the Land ride during dinner. Our boys love the characters there - Mickey, Chip n Dale and Pluto. The food is good (not the best at Disney, but good) and with three kids, we prefer GG's family style to the buffets (where we have to take turns getting up, juggling plates, etc.) They serve both the regular items and kids' items - so lots of variety and good choices for the kids. We've always found that the characters spend a long time at each table relative to other character meals, and we've often seen them more than once per meal.
We liked Akershus (but have not been there since it became a character meal), love Ohana (but only go for dinner) and CP was so long ago that I can't remember details. So I don't feel qualified to vote for another! Good luck!