Interference
Banned
Wayward Cave for me. The main part is just stupidly annoying to navigate and very easy to get yourself lost in (especially without Flash, herp). Also good luck escaping when you have that person following you; pretty sure you can't just go and leave via Dig or whatnot (and if you can then I guess no quest completion!), and you can't use the bike either so you're forced to run. Very low variation in wild Pokemon as well, and if you want a Gible? Guess you should look in that other entrance! You know, the one you can't even see under cycling road itself. Terrible design choice there.
I think being able to get a Gible after the 2nd gym was a terrible design choice.