In absolute terms the Watt/Puppy is a better speaker than the Sophia but its also more critical of the electronics in the chain and its harder to setup properly. The Sophia isn't really as good but its easy to setup and sounds impressive with a variety of systems. They're also a pretty good match to your MF amplifier and player, but I find them boring after long term listening and unlike the W/Ps could become a weak link if you ever upgraded your electronics. I never liked any of the Revel speakers and I find them all to be pretty poor performers.
I'd stick with W/Ps if I was in your shoes especially since you already tried them and were successful getting positive results.
I'd stick with W/Ps if I was in your shoes especially since you already tried them and were successful getting positive results.