importing the Wave file to PT and then Exporting it, wont make ANY difference!
The point is that a PT HD system is considered to sound better than any other DAW regarding recording and mixing.
(Thats what i heard independently from a couple of Pro-Recording, Mix- and Mastering Engineers, I personally(my ears) can not confirm that argument)
I just know I dont like the sound of Ableton Live at all
CD Quality is always: 16bit 44.1khz