I mean, all of it really. Other schools of magic can have interesting components or expressed effects. Curative magic feels so underwhelming narratively in comparison. Just snap your fingers and what ails your allies is gone. I also think that HP is lack luster in most cases.

When I started this campaign I asked my players what they wanted and they told me they wanted to punch fascists and not be made to feel bad when they take out bad people. As well as having enough money to pay your rent and being able to land your dream job.