Anything SS sounds better than D'Agostino ?

Change the premise of the comparison; I’d wager the D’Agostino amps would be used typically in conjunction with larger, über-expensive, multi-way, lower efficiently and passively driven speakers with rather complex and power-draining cross-overs, which are in the dire need of a proper amp-kick in the b*llocks to begin with to have them wake up. Use an amp costing much less or even a fraction of the D’Agostino in an active configuration with higher efficiency speakers, and that cheaper amp would be comparable looking into a much easier load without the interference of a load-varying passive cross-over. Amps like the D’Agostino’s are a symptom of extravaganza and difficult speaker loads; change the circumstances, and it’d render them unnecessary.

Better, not sure.  I will say hearing Luxman and D'Agostino side by side I was really happy to afford the Luxman. :)

Also, Ayre.  Is it better?  No, but it is different, and wonderful.

You really should listen to them all.

nothing transistor sounds better.

Depends on what speakers to drive...

Caveat: I’ve only heard these at shows. While both were excellent, on sound alone; I’d have to give the edge to the Gryphons.