I'll go ahead and say, from personal experience only, best wooden coaster 100ft or under goes to Tremors at Silverwood. It's an epic CCI and one of the best built, I mean, it was in the Hawker poll top 10 for 10 years straight, and it wasn't influenced by Alvey and the cult to get there, either.
As far as steelies go, I'd have to go with Ninja at SFMM. It's a fun Arrow suspended and, considering whats left, it's the best one out there today.