Question

If you prioritize firepower, I recommend going for Lillian first. Alexander excels in defense and support, but Lillian, with her offensive skill set, would be a better fit for your goal, right?

It's Lillian. While Alex has some limitations with stun buffs and cannot apply buffs, the stun buff can be substituted with Auston. In comparison, Lillian is a valuable hero as a red healer. She has many uses for her ultimate, so prioritize leveling up Lillian!