1. Because Zhao Yun gives priority to pushing the map, he can push the map quickly first, and then get resources quickly, so he can quickly open the second tree; However, if you choose Gao Jianli, the damage is low and it is useless in the later stage.

2. Zhao Yun can be more resistant to beating but Gao Jianli can't. Therefore, it is easy to use Zhao Yun in prosperous times.