Version 6 is the best audio editing software! Leave it to the Germans to design something right!
I have not the comparison to all audio editing softwares, but I could imagine it is the best, it has very much features and is quite intuitively to handle and that montage-window is great. I also don´t know another program, which is able to create DVD-Audio-files, what I do from time to time with my recordings. On DVD-Audio you are able to save your recordings in 192 Khz, 24 bit-quality and you can replay them on a DVD-Audio/SACD-player.
As for Logic Pro, I use it as a workstation to create ensemble music, and synthesize new sounds, and create new tracks. It's not so intuitive and easy to navigate like WaveLab for 2 track editing. However, I've got a new plug-in from Vienna Sound Library - Konzerthaus Organ, which is a digital recreation of the Rieger Organ in Vienna's Konzerthaus. I am curious to use it in Logic Pro - I've heard Bach on it and the fidelity of sound is amazing!
Very interesting, did you try out the free Bricasti-ambiences, btw? I think, Didier has put a link here to them a longer time ago...
I also wish a happy Easter to you and to all others here!