Both were a lot of fun. Troy has stood out amongst the best in Germany so far.
Since then we've hit Wild-und Freizeitpark, which was a bonus that we spotted while site seeing. It's little coaster was a lot of fun.
http://www.klotti.de/englversion.htmlThen Phantasialand. It was well themed a but without Black Mamba it's not much of a ride park. They have a crazy drop tower that shots up and drops and it's Intamin. It's also built into a castle. I've never seen anything like it but it's a good time.
Holiday Park was a major let down due to Expedition GeForce being down. The rest of the park is decent and they have a crazy swing ride. I just about pooped. It's 260' tall.

The Intamin drop tower was nice and intense.
Today was Europa Park. It was the most impressive overall. it's a total Disney rip off. There are dark rides that are very similar to several of the rides at Disney and there's a huge Epcot Ball. Silver Star was a top notch B&M hyper. People have complained about the trims but they didn't seem to take away from the ride. It had a lot of positive g's and air time. There's also a wicked s-turn at the end of the ride. Blue Fire was a ton of fun. The launch is powerful and you get flipped around like crazy in the inversions.
We only have one park left. So far Troy, Black Mamba, Silver Star and Blue Fire have stood out. Dark rides have also stood out. They're everywhere and most are really cheesy.