Anthem Amp 2 or Rogue KT88 or YBA DT

I am looking at these three amps.
Can somebody give me guidance on what would sound best with my Spendor S3/5?
I had an AMP 2 with S3/5's. Too soft. The AMP 2- that's the one with EL34's, right? I have a Rogue Stereo 90 now with KT88's, it is a much more dynamic amp than the Anthem. A different world, actually. Haven't heard the YBA.

Actually, if you're keeping the S3'5s you should look into ss. They are much more solid-state friendly than tube. I know, go figure. A Nait 5i sounds great on them.