I'm actually going to Kings Island next month! Diamondback is definitely my favorite B&M. Beast was just freaking scary, especially the tunnel with the helix. One thing I love about Kings Island is that the lines are so short all the time. I thought Vortex was insanely rough to tell the truth. I liked the first drop then nothing else. All the other rides there though are so good. Oh, and thanks for resurrecting this thread.
So as it turns out I'm going to 3 theme parks this year, Mount Olympus (Which I went to a week ago), Indiana Beach, and Kings Island. It's a good year for me .
Some thoughts on the roller coasters at Mount Olympus
Hades 360 is my favorite wooden coaster now. It is just insane. It hauls ass all the way through till the end. There really is no break. The underground segment is very rough still, but it makes up for it in how out of control it is, it reminds me of the Beast's helix section. I loved the corkscrew, there is a part of the inversion where I honestly thought I was going to hit the supports. It takes a 75 ft drop right out of the station, so there is some airtime right off the bat. That's another thing this coaster did very well.
I give it a solid 8/10
Cyclops was awful as many have told me. It is the roughest coaster I've ever been on. The worst part was when it was at it's highest point where it drops into a slightly banked curve. Up there you just know it's going to be a very painful experience. I can see why you have to be 18 to ride in the back car of the ride. Any younger and you would be knocked unconscious by how aggressive this ride really is.
3/10
Zeus was actually very smooth, and very awesome. After the first drop it's your standard out and back coaster. Though one thing caught be off guard, and that was the lateral g's. I was so frightened about falling out the side of the ride I actually held on the other side of the lap bar. The airtime is phenomenal. It is my favorite out and back coaster.
7/10
The park itself was very sub-par. It had almost no bathrooms, and it was very small. If we hadn't gone to the water park I would have been very disappointed. The water park was very good. I wasn't able to go to the second part behind the indoor theme park, because my brother was complaining about walking. Oh, and there was no where to cool off if one isn't riding anything. There really is no shade in the water-park, so if your in bear feet they will get raw.
6/10
Overall I've seen better parks, but if one is to go to this park they need to make sure to buy lots of water (because carry-ins aren't allowed) and have some sort of foot-wear in the water park. I would recommend it to someone who either is a BIG fan of water parks, or Roller coasters and no one else.