Keep in mind that the relevance of military might differs from country to country, and especially in first world countries a military might is far from priority. (At least shouldn't be)
Some countries invest more in their military, and some countries simply have to invest more than others because of their geographical position & diplomatic situation, Which makes comparing it stupid in the first place.
Arguing about who has the best army is retarded, because investing in a huge army to stay at bay is a waste of resources as they could be used for far better purposes.