The is leaving the water technique, and there what do you do while in the air...and the all important what technique you do when coming down! This again changes depending on what kite you are riding.
Float, glide, hang time etc is dependant on the riders skill and the type of wing in the air for sure.
If you are a beginner then start with a medium aspect kite first, then maybe move into something with more aspect, like a screamer, fuse and you could even go to the race extreme like an edge or dyno. They each have their own individual power delivery characteristics and how they boost and work once you are in the air.
You can go big on any kite in the right winds.... , with the right rider
Also depends on what you want to do once you are up there as well...