I agree that, in my opinion, GMF breakfast is nicer than the Santa Fe or the Cheyenne. The cereals, breads, croissant, brioche, spreads, cheeses and drinks are all exactly the same. However, there is only plain yoghurt at the Cheyenne, whereas there are various individual flavoured ones at GMF, and yes, the fruit salad is tinned at the Santa Fe and the Cheyenne. There is also more choice on the cold meats that are available at the GMF.
I do prefer GMF to breakfast in the hotel. Having said that, we were up anyway for the earliest slot at breakfast this past week, and it was absolutley fine, as the restaurant at the Cheyenne was not busy at all then, until about 7.45.
Elaine