I'm glad it ended up going well. Personally, I think that if you are hosting and you are having people bring some of the dishes, you should be flexible as to what they bring. For instance, I would prefer to ask someone to bring something more general, like a vegetable side dish, and let them pick which recipe they want to make. If they want you to be more specific, you can always give them suggestions. A lot of people have certain dishes that they like to take to potlucks because they know that they turn out well. Usually there is so much food at these kinds of meals that it really doesn't matter if you don't care for creamy coleslaw because there are other things you can eat.
I do a lot of the holiday meals for my extended family, and if I'm that fussy about having particular kinds of cranberries, sweet potato dishes, or salads, then I'll just make it myself.