As many users have mentioned, I too am not the biggest fan of any Victory Road. In addition, perhaps I can mention my least favorite place to enter in each generation:
Generation I: Rock Tunnel - I don't like navigating caves in older games, especially without Repel. I also hate when I am required to teach my Pokémon useless HM moves such as Flash.
Generation II: Ice Cave - I can't speak for anybody else, but for some reason, the Ice Cave en route to Blackthorn City was very hard for me to navigate. It was so frustrating.
Generation III: Victory Road - Practically any Victory Road is frustrating to navigate, but in Hoenn, it is the only place I hate having to traverse. While others complain of having to traverse the water in Hoenn, I actually enjoyed it, as I am a huge marine lover. More water + island region = happy Serenity
Generation IV: Mt. Coronet - Arguably the worst location to traverse in Pokémon. It requires the use of too many HMs, most of which are useless moves and the puzzles and constant Pokémon attacking you makes it hard to navigate.
Generation V: Victory Road - While the main region has no places that I hate visiting, Victory Road anywhere will take the cake regardless if I can't think of something else.
Generation VI: Victory Road - Same as Unova
Generation VII: When I think about it, I don't think any location existed in Alola that I hated to go. I don't even recall it having a Victory Road, which is great.
Generation VIII: Galar didn't have any locations either that I hated to visit. In fact, in my opinion, the new gameplay style makes exploring in Pokémon much more fun. If anything, I wanted to go everywhere this generation.
Generation IX: Same as with Galar, I just enjoy exploring every square inch of Paldea.