ML No.20.6 vs 23.5

My initial choice was 20.6 but these babies don't come easy. Miss No.23.5 came by and makes up a very strong option. I have not seriously auditioned any one of these but by both users and professional reviews they are very good amps. can someone out there who had compared these 2 gives me some guiding? Tks.

Pre Amp - Muse Model 3
Current Speakers - TAD TSM300. Coming soon-Dynaudio Confident 3.

Music Genre - Light to heavy.
I have owned the 23.5 many years ago, and replaced them many years ago. IMHO, modern day amplifiers are better than them for the same price. Took a huge lost when I sold them. One of my more costly audiofool purchase.
Hi Extremephono, may I know in what way the 25.3 is not as good as the modern day ones and which modern day ones have you put the 25.3 up against?