I like glitchy runs, but no-glitch runs can be good too I guess. It might depend on much the glitches skip, and personal preference.
Oblivion has that
ploishing glitch that lets you skip to the end in a handful of minutes. I think it's neat, though it does skip almost the entire game.
Ocarina of Time has a lot of similar but less extreme skips, and still takes 18:10 (in the speedrun I checked). There's a lot of things that still need to be done, very accurately, making it a good middle ground in my personal opinion.
I think Half Life 1 is a great example of the speedrun being more entertaining with the sidehopping
"glitch". It's faster, trickier, and you still see almost all of the game. One of my favorite speedruns. Nowadays people install a mod which simply adds the mechanic back.
IDK, I guess I'm more interested in interesting glitches than skillful play. But there's a whole lot of overlap, which I like best.
I usually plug the
IT-HE guy's Deus Ex or Ultima wrongplays, but there was a very entertaining and well-explained video LP of Ocarina of Time along those lines. Stuff like collecting every key item at the wrong age. I can't find it to
link now, though ):
Or the SM64 guy I think Putnam linked recently, who I think is notable for explaining complicated glitches in accessible ways.
https://www.youtube.com/watch?v=vaJOVyfPaBEI wouldn't compare glitch-science to hacking in a win button
It's not like built-in cheats are considered interesting glitches.
But anyway, this is why there are glitchless runs and even glitches that get ignored for more interesting glitch runs. Something for everybody (: