I suppose what I mean is that I like how this process produces PMs who are aligned (at least to start) with the majority will of Parliament, since the party/coalition with the most seats in Parliament gets to pick them.
In contrast, US Presidents are elected with zero input from Congress and are often at odds with the House and/or Senate majority.
e.g.
https://en.wikipedia.org/wiki/2019_Conservative_Party_leader...