Not a fan, but it generally boils down not to where they can fly but how they differ in other aspects, mainly cost.
SpaceX is currently the world pioneer in heavy reusable rockets, which is another way to say they are the only ones to launch big stuff up there so cheap, and it gets even better.
They are essentially doing the good side of capitalism - making stuff cheaper - applied to space, one of the most expensive industries in the world.
I might be wrong on the side of cost efficiency, this is just common perception and you can inform me, but where did I tell anything about Musk himself?
I do think he is an asshole, but this is irrelevant to the topic