Before switching back to Cubase after buying a sixpack of those sweet lookin CMC controllers, I was a Logic Pro fan mainly for the fact that I had a lot of apple loops from different libraries and they were automatically tranposed to the key and the tempo of the song (for example, if you have the song key set, and you have a apple loops library indexed in Logic, while browsing the loops folder you can listen and import them automatically tranposed to the key and tempo of your song, which can lead to infinite sources of inspirations).
It would be great to have such a feature added to Cubase (since only the aiff files have their key embedded within themselves, so the DAW knows how many semitones up or down should be tranposed to match the key that the project is set to).