I try to figured out what's the best way to produce samples and sounds "choir in trance" ... like in "SUNLIGHT THEORY" respect ENVIO and SVENSON!! -> I hope they recorded at church with microphone -> thats explain everything how perfect the choir sound is :P
Depends on what you want to do - if your pure trance then you might want to get a Nord Lead 2 (I've never used one but I've heard that it's great for trance) Atmosphere has a lot of (as the name says) atmospheres - like evolving bells, choirs, strings (both acoustic and analog) - for pure trance leads you would want the Nord Lead 2 but for everything else you can use atmosphere