If there was only one type of coaster...

[IntaminToWin]

Whatever Skyrush is. Wingride/hyper? That. That is what I want.

 

[metalhead7]

Strata - Only two both are the same thing (are both launchers anyway)
Giga - While there are alot of good ones, there aren't many out there.
Hyper - Would have been my second choice, there is a lot of variety out there but I don't always need a drop of that size to get me scared.
Invert - Great coaster type, but occasionally I do want to see the rest of the park without waiting another 30 minutest to get front seat.
Standup - Not enough variety
Wingrider - See Above
Wooden - Another close one, but right now they just don't have the speed or intensity to compete with steel coasters. With rides like Hades 360 and Iron Rattler maybe that will change though.
Launcher - Chose this because you cant get that kind of acceleration anywhere else but on a coaster. (Maybe a fighter jet, but I'm not in the air force). If I wanted height I could go skydiving, if I wanted speed I could get behind the wheel of a racecar. But there are few cars that can accelerate the way a launcher can.
Dive - Again I need more variety

 

[Darren B]

Wooden. even though I voted hyper I quickly realised my error, you can do so much with wood, pretty much everything a Hyper can do and more.

 

[Alastair]

Probably invert, only B&M inverts though. They offer the perfect combination of forces, positive and negative, they can have airtime and extreme intensity all in one ride. They're also smooth and comfortable.

 

[Yeti]

I'm going to choose a launcher, because they have the most variety. They can have intense inversions, fast paced turns or swooping airtime hills, just with a launch at the beginning!