There is this slogan that follows MTN which is "everywhere you go" and believe me, it is difficult for you to be in an area and the network is not that strong. Also, as the first telecommunications company that began it's operations in Nigeria, they have the highest numbers of registered users that make use of the network. So, for those two factors, I will say that majority of the people will always want to make use of the network in everything that they do which is pretty normal.
However, I think that since I relocated to a different region where Glo network has the upper hand, I have really enjoyed making use of the network right here. Since I have been making use of Glo network here, I can confidently say that it has served me to the level that I feel satisfied.
So, at the moment, I have total preference for Glo network.