Hi Bachus
for ME this all 4 arranger software can be forget really soon..
I'm working right now to deal with Jorgen, the developer of EnergyXT:
http://www.energy-xt.com/
Jorgen is very interested to develope the missing realtime styles parts on energy XT.
For that on my current OS 5.3 we have already removed the Qranger engine and starting to integrate the Energy XT:
http://www.lionstracs.com/demo/energyxtgroove.jpeg

On energy XT are already working the unlimited Markers patterns, Unlimited tracks Folders= chords tabs and realtime BPM-Pitch changes of audio+midi.
Of course is complete of integrated synth, sampler, mix for a final embedded file style!
All more features you can find on the energy website, of course you can FREE download and test, is full working without the SAVE fuction, untill you buy the serial.
test it, is really AMAZING!
This can be the ONLY arranger software of the future!
( for that I will invest my money there)
Let me know what you think about
Regards