As a midi sequencer MixCraft cannot touch PowerTracks...and for the most part they both do the same after the midi sequencing..

The advantage shifts to MixCraft...for what they give you in VST's and also MixCraft is a better VST player (wrapper)..

MixCraft also include their large loop library...and is far and away better if you use loops..
My choice since I prefer to seq on my G70....MixCraft..