Hi. Figured I'd say a thing or two.
In my opinion, and mine alone, there is no such thing to me as a worst track. There are tracks that can be annoying, but every circut takes time to learn like every other. Some have things that appeal to people more than others. It could also be a case of being used to certain parts and what could be a track most would hate is one that a person would test their cars our try new techniques on.
Nurburgring (and if I miss-spell that, sorry), is by far the best track, very few tracks in the world come even close, including Sebring, Le-Mans, Daytona (the road version, during the 24hr of Daytona), Spa, Montie Carlo, etc, it's an massive, expansive nightmare that you want to go thru in the end again, and again, and again, and again. It's a track that can teach a lot and help one to an extent.
Every track has a rythim, what I would find annoying is just a case of being as of yet used to a track. I wish they had brought back Rome since I found that intresting, even though I'm sure it was hated because of it's many blind corners. Infenion is also a bit of an annoyane, ironic since I've seen that track at least in 3 IRL GT races, I just have to get used to both versions, and then I'll be fast around that.
Suzuka is a top favorite for me, I saw it and played it a lot in F1 games, so I'm very familar with the East and Main sections. Hell, I played the east section a lot in NASCAR 98, so I know it rather well, and for me that's my test track for most cars. I'm crazy to say this but I feel like the Stig from Top gear when I go around on that track, it's annoying and I can see why, but I've taken the time to learn some rythimto it and I'm decent if not quick. It's a fun track, same for El Capitan, and nearly every single one.
It's down to what one wants, and for me I just want to try and have familiarity with every single track, regardless if I do feel I want to stay away from a few. But the sooner I get use to them, the less I feel like not wanting to go on.
This is all just me though, and it's opinion. Dunno what else to say.
Till later.