Karen
Just IMHO you understand.
I feel that younger children are less suseptible to tummy upsets at buffet hotels than adults. Adults seem to be more adventurous in what they eat, having all sorts (We like to try foods we can't get at home as it's part of the fun of being abroad LOL). Little kids are quite conservative, choosing plain things like pancakes, cheese and tom pizzas, chicken and chips, cereal, breads etc. stuff they recognise from home.
I know where your coming from though, I don't want tummy problems myself on hols but I could cope, but would be mortified if my kids got something cos I'd feel responsible for choosing the hotel.
Your poor head. Must be buzzin.
Someones put a good map of hotel locations up on the thread "What one to choose" that might help you.