Knowing propositions about Christ is one thing, and it's needed, but reading his words and understanding the settings is crucial. It doesn't matter in what order you take the Gospels. The fourth Gospel, John's, is distinct. Begin with Matthew, setting aside a fixed amount of time each day until you get all four Gospels read. Plan to read slowly, but not too slowly.
Some people take only one verse at a sitting.
That's fine, if you've already gone through the Gospels a dozen times. If you're on your first reading or your fifth, you'll either want to read straight through or at least read in long stretches. That way you'll get more of an overview. Later you can do the detail work. The Gospels aren't long.