This may only apply to those who grew up playing a lot of public and municipal courses built during a certain era, but I really dislike it when a course appears to be routed to a formula. Maybe because I played a lot of Robert Bruce Harris courses growing up and became familiar with the "perfect par" rotation that he did, but I was never a fan of that. I also felt like applying that regularly produced a sense of sameness across many courses that I played, to a point that I could actually predict the pars of holes on a scorecard before I even looked at them.
I guess I hate the idea of forcing a pattern of hole pars into a given routing.
As a corollary from this - the mirroring of finishing holes. 9 and 18 are parallel to each other, perhaps separated by the same lake, perhaps playing to a shared green. It's even worse when they do it with 8 and 17 as well. I've seen several courses where 8 and 17 were more or less identical par threes right next to each other.
I guess the TLDR version of this is - get away from formulas and rotations and have some variety.
Oh, and a +1 to forced lay-ups and another to courses where every par three is 200+.