Logic 8
I wouldn't say that Logic 7 was a disaster at all....I used it on over 100 record projects and about a dozen movie scores. That being said, Logic 8 is a dream.
What is a disaster, IMHO, is the MIDI and virtual instrument portion of ProTools, which is archaic and rudimentary at best compared to the depth of Logic's environment, notation, etc., not to even mention the depth and quality of the included plugins, instruments, and utilities. Mainstage in particular is worth the entire price of Logic! The ability of Logic to deal with multiple audio formats at the same time, to use interleaved files along with non-interleaved instead of the goofy .L and .R that ProTools forces you to use means I'm making music with half the number of faders and clutter.
I am what you would call a power user, logging at least 8 hours a day, six days a week in a major recording studio and I can honestly say I don't want for much with Logic, and it for sure never holds me back.
Oh, and all this for $499? You've got to be kidding me. Kudos to the Logic team at Apple. Went to a Euphonix/Apogee/Logic 8 demo in Hollywood yesterday and was blown away with the combination, this is the future. The days of spending $30k of hardware that won't work with anyone else's software are numbered. Does anybody remember the Synclavier? Digidesign will have to make some hard choices in the coming years.