Parkitect is the modern spiritual successor to rct1+2, while Planet Coaster is more like 3. The thing I (and some others) don't like about Rct3+planet coaster is that they're park painters where they're more focused on decoration and making a pretty park and the game is trivially easy, vs rct1+2 and parkitect where you generally have to put some work into making a profitable park and there's a bit more focus on the management and simulation.
I came here to find an excuse to mention Parkitect. Controlling the sight-lines of your park to hide employee pathways and deliveries in order to be more Disney-like is a great feature. Simultaneously fun and infuriating.
Eh, just slap blank beige walls everywhere and the peeps are happy. Obviously the game can't be expected to rate aesthetics, but the excitement of making a nice park is a bit lessened when you know that a beige solid wall would have done the same job.
Another thing I really don't like about Parkitect is that the physics feel too slow. The coasters don't have the same sense of speed as in Planet Coaster or RCT1 and I think a big part of the reason is the oversized peeps. Which is a shame, because regardless of what I said above, I actually like Parkitect's scenery and ride building the best.
Same with some of the City Skylines Youtubers ... I barely can get a functioning traffic network running (without despawning of vehicles) and then there are those who spend ages placing little bushes along the highways because it looks nicer.
Parkitect also has multiplayer.