i've tought nuendo/cubase and Logic and worked with PT as well.
PT is pretty cool, but in my opinion harder to learn and PT sux with midi, what i hate about PT is that they want to tell me what hardware to use....damn, i want to use whatever converter I WANT!!!
Logic is cool with midi and has got incredibly good plugins....you can sidechain everything easily and the quality of the plugins ir very cool, too.
but working with logic is a little bit like working with
and in logic is way complexer to setup your environment for ex. (talking 'bot logic 6).
that's why i love cubase sx/nuendo...
i can creqate a new track whereever i want and don't have to fuck for hours with new objects, their purpose and names in the environment and still don't have them setup in the arrange etc...
when you create somethin in cubase main window it's also in the mixer and ready to go, you don't have to assign it from fuck to hell.
i know, you logic-head will tell: "NO, it's easy as fuck".. but you've created your environment....coming to another logic user, who's set it up completely differently would make you curse him.
in cubase i can work at any studio that's got cubase or nuendo, and all that's different might be my shortcuts.
plus i think cubasesx / nuendo is very easy and fast, cool group-features etc.
the cubase plugins suck, though......Logics and PT's plugins are way better, but most of us are working with waves or similar bundles anyway.
cubase/nuendo sucks in sidechaining!
i think there's not really a "best" software, they all have got their advantages and disadvantages, depending on what you need.
regarding sound (yes, different software does sound different, due to different algorithms etc) nuendo sounds best, followed by PT and Logic sounds the worst (of this 3).
but hey, that's nuances, there's more important stuff......
but it's still interesting, when you've got the possibility compare nuendo and logic soundwise, you'll be amazed!!