Essentially there are three things you should consider before selecting a tyre and depending on the type of driver you are you will broadly fall into two types of customer.
The first type is the person who wants to put on the exact same brand that they are replacing, like for like.
So if you are a Dunlop tyre driver for instance, the chances are you will put Dunlop back on your vehicle.
Why not, they've probably served you well.