Take my hometown in Northeast China as an example. No matter how picky operators are, no matter how cheap the price is, telecommunications and mobile are weaker than Unicom in terms of network speed and stability. Based on the accumulation of users and the development of technology in early years, China Unicom's coverage area and signal stability are much stronger than the other two, but the price is also much more expensive. As an old Internet user with 10 or above, I often play games on the computer, which requires extremely high network stability and network transmission speed, so in general, I will choose Unicom.
However, there are some special circumstances in our local area. Based on the agreement between the developer and the operator, the whole community will be contracted or monopolized. Such a community can only install one network, so even if we want to install Unicom, there is no line, so we can only choose other networks. The reason for saying this is to explain that many times, although users seem to have the right to choose, they actually have no right to choose at all. Take port number transfer as an example. If it were not for state intervention, the three major operators would not take the initiative to do so at all.
If you choose from after-sales service, I still recommend Unicom. After all, China Unicom has developed in the north for so many years, and its service system is relatively perfect. I have used the networks of these three operators, so I won't say who is the worst. At least I think Unicom's service response is the fastest, and it is also the most reasonable and effective to handle. So if I have the right to choose, I still prefer Unicom, but when it comes to the price of network fees, I think mobile and telecom networks are cheaper and Unicom is more expensive. Moreover, both mobile and telecom have to force users to apply for mobile phone cards to use broadband, which is not good.