doubts about which horse I should support in the pre-live

[Oliveira05]

Good evening, I'm following a Brazilian horse trader who does graphic and volume analysis, kind of similar to Peter, Caan! But the method differs a little in the entries, as he usually enters any of the 4 horses that usually appear on the ladder, whereas in Peter's videos I usually observe that he prefers to trade on the favorite horse or the one with the lowest risk when the favorite is not favoring me so much! I have a question: should I focus on the favorite's movement, look at the movements on the graph and enter any of the four?