The one that sounds the best to you is the best. Its always been astonishing to me how people will argue over the hardware, when it's the software (music) that we are really trying to appreciate. The best hardware in the wrong room, or set up improperly, will not please the listener. Audiophiles should learn more about acoustics, especially standing waves, nodes, antinodes, reflection speed, backslap, etc., before spending the price of a car on hardware. The biggest problems stem from putting the wrong speakers in a room, and positioning them improperly. In my 25+ years experience, I have found that most loudspeakers with woofers bigger than 8" will overload the average room in the average North American house. Lets face it, we all live in different houses, but they are all basically "standard" in many ways. The furniture industry, the appliance industry, the wall covering industry, carpet industry, window covering industry, etc., have all settled on "standard sizes" for the majority of their core products. Think about this when you try to shoehorn the latest Vomitron 500 loudspeakers with the 4 15" woofers (per channel) into the average living room. I'm not saying the amplifier, tube or transistor, is secondary to the loudspeakers, both items play an equally important role. Getting the acoustics right will bring out the best in any system, tube or transistor, cheap or expensive. I have a colleague who engineers, designs, and installs custom home theatre systems in the $100-250k range. He is always amazed at how easy it is to sell the system, but how difficult it is to sell the customer on the idea of treating the room. Most refuse to spend any mony at all.
