Be careful though. If you're just exporting the wave files, they mightn't re-align themselves properly in the other DAW, due to them starting at different points. For example, if you have a vocal that starts at 30 seconds in pro tools, and you just export that from pro tools and import it into your other DAW, it will show up at 0 seconds and be out of time. So before you export your audio files, you should make them all the same length (inserting silence where there is no audio)...
A quick way to do this is to select from the first track to the last track, from the very start of the song, to about 10 seconds after the last one ends, and then go to the Region menu and click consolidate. Then you can export them, and import them and they should all line up.