Great thread.
Personally I like watching Origin, as, at its core, it's a series of three high quality games of rugby league played by some of (certainly not all of) the best players in the world.
But that's it. I like watching a good NRL matchup between two quality sides too, because I love watching rugby league. I don't like the hype and I certainly don't favour either side and I too find it absurd how passionate NZ league fans get over either QLD or NSW, especially those either rubbish or couldn't give a sh*t about the Kiwis or Warriors.
Kiwis vs Kangaroos is the pinnacle of rugby league in my opinion, regardless of bias. The quality of play is comparable but the passion on the field is exceeded (specifically these days) by the test match. Origin at its peak was arguably a much better spectacle than NZ vs Aus but it has descended rather rapidly in the last decade or so with Queensland's dominance and increasing dodgy selections.