I cannot say that any topology is obviously superior to another even under narrow parameters, such as a particular output range, much less without any such restriction. My favorite amps have all been relatively low powered tube amps. The two very best amps I've heard are wildly different in design. One is a Western Electric 59 amplifier which is a pushpull 252 amp (crazy rare and expensive). The other favorite is a custom made OTL amp that is one of a kind; the owner has jokingly said that he might be willing to sell it to me for $250,000 for the pair.
Of the amps I own, I happen to prefer my pushpull 349 amp over a much more expensive parallel 2a3 SET amp, but, they are different in so many ways there is no way to attribute differences to topology. Only on a very general basis of hearing many different amps over the years that I can sort of generalize that I tend to prefer low-powered pushpull amps over SET amps because they deliver a bit more punch.