@magon ,
Mac is a respected brand. I have not had the pleasure of owning any of their equipment.
That being said, I think you should be considering what speaker you are pairing with. Some speakers need gobs of power, like MBL, some need less. Some amps work better with certain brands of speakers. I own Vandersteens, and Ayre seems to work extremely well.
Long story short, much depends upon the whole system, rather than just one component.
HTH
Bob