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Information required for the following integrated amplifiers of repute - Harman Kardon HK6200, Luxman L2 and Yamaha A 1060

I am requesting every Hi Fi enthusiasts and audio engineers to throw some light on the these three integrated amplifiers, namely Harman Kardon HK 6200 (45Watts rms x2), Luxman L2 (33 watts rms x 2) and Yamaha A 1060 (120watts rms x2).

Although they are manufactured by very reputed companies in highest standards, How do you rate them? Which one is the best sounding amplifier from an audiophile's point of view?
What are their merits and demerits?
Please discuss in details if possible.

Thanks and regards,