It isn't uncommon to see variations of printed materials if they were printed at different sources. Due to the size/reach of McDonalds they couldn't use 1 Printing Company to accommodate the giveaway across the country. Different areas have different requirements and updates would be made over time. Chances are, the one with the most information would be a later one.
If you are going to be a collector of McDonals giveaways, then you might invest in a McDonald collectors book. They are pricey but give going prices and variations of different items.