For a wood coaster, I'd say Raven at Holiday World. It's not a bad ride, but it's my least favorite of the three Holiday World woodies. I imagine a lot of the love comes from when it first opened, but I've always found it short and fairly tame compared to Legend and Voyage.
For a steel coaster, definitely Intimidator 305. The first drop isn't bad and the initial turn is extremely forceful, but after that the ride just feels like it's trying to use op energy and doesn't really do much. Now, I did only ride it opening year when the ride had a brake on the drop, but even without that the ride has never looked overly appealing to me. Top 5 in the world? I'm not even sure I'd call it a top 5 in the state. Skyrush is another ride I found severely overrated. It is a pretty cool ride, but I just thought it was way too uncomfortable to enjoy.