For late september/early october I'd personally expect Derren Brown to be 90+, the coasters between 30-60 mins and everything else under 45 mins. Storm surge though, I'd expect it to be between 60-90 mins (due to bad capacity). During October (Fright Nights) evpect pretty much every queue to be over 30 mins, coasters between 90-180 mins and then the mazes AT LEAST 90 mins. This is from my experiences last year, hope this helps, have a good visit!
credit to sam!