Big Cities

For those that have travelled far and wide across major cities in Nigeria. There is no doubt that Lagos and Abuja are the two biggest cities in Nigeria. Exluding these two giant cities, I've fathomed that here is where the problem lies; many Nigerians don't know the exact next biggest city(s) after this two mentioned above. In other countries, their citizens can list the top 10 cities in the perfect order without anyone disputing it. But here in Nigeria, If mr. A should list it's top 3, mr. B will dispute it and list another different top 3 cities entirely. I think this arises because we are using various and differ criteria according to our perception. Let us all use this simple criteria: Level of industrial presence, level of infrastructural presence, largeness and population size. I think this are the three major criterias for rating a city, so with these criteria, any named list here can be justified. I woun't name my list in other to be neutral. Your lists are welcomed. At the end of the day, the most popularly supported list(s) are the final top 3(three). Cheers!!!