Comparing the nutrition facts was very interesting. Both cereals have the same number of calories with the Post have 10 more calories from fat. However, both cereals have an equal percentage of total fats, saturated fats, cholesterol, dietary fiber and protein. Surprisingly Post has only 10g of sugar while Mom' Best has 13g of sugar. In addition the Post Cocoa Pebbles had significantly higher amounts of vitamin A, vitamin C, vitamin D, thiamin, riboflavin, niacin, vitamin B6, folic acid, and vitamin B12.
So, we'll stick with the Cocoa Pebbles - in moderation of course :-)