I'm going to step out on the ledge here, but that's life...
I don't believe in the "watts is watts" statement. Something else is at work here, which the majority of us (myself included) obviously do not yet understand.
Engineers/scientists love to hit us over the head with the measurements, saying, "Look, the meter says this. Therefore, it must be so..." However, I've seen enough examples of 12 wpc amps outmuscling 100 wpc amps that I now must look over the amp itself, as opposed to looking at the numbers, and then "listen".
Music is a dynamic phenomena, one that when factored into the uniqueness of the power demands of a loudspeaker (like a fingerprint), produce something far more complex than can be wholly represented by putting a 1 KHz test tone through an 8 ohm resistor, and making a value judgement on nothing more than that.
As far as the Manley goes, yes, EL84 amplifiers with its respective tube count tend to produce less real world power. That is true. However, for those who do not need the last word in power, EL84 amps also tend to produce incredible tonality.
In the end, what is and is not important to you must be factored into the equation when you move forward with your purchase. Beyond the lineage requirement for a North American or European tube integrated, I feel the products on the above lists are from good solid companies, meet your price requirements, are built well, and sound good.