I have realized what it is about Pate that annoys me - he is so, so stupid.
I mean, here is Pate, who - just by sheerest chance - has gained access to an old world killing machine.
Suddenly, he's all "Fools! I will destroy you all!" - yet he is apparently utterly oblivious to the fact that there's a big, unknown Universe out there - and despite the new Unknowns that keep being thrown at him, he still hasn't exercised his wits enough to think "Whoa, wait a minute, maybe I'm out of my depth here..."
Pate proved that he knows next to nothing about the Praeses - ("magic space fairy"??) - yet he expects (without any real thought) to just unleash his thug and walk all over anyone in his way.
Stupidity. Grrrr. So annoying.