My first Topre board was a Leopold FC660C, which was very solid, but the layout was not quite to my liking, and I didn't like the stock keycaps, so I gave it away.
Next, I got a HHKB Pro 2, which I particularly like for its 60% form factor and excellent layout. Although I like the downstroke "thock" of the HHKB, I don't particularly like the return stroke "clack", and I would consider getting a Type-S or doing a foam pad mod.
More recently, I got a Novatouch. I like its main selling point -- compatibility with Cherry mx keycaps -- and I like typing on it more than any Cherry mx keyboard I have tried, but it does not sound or feel as good as my Topre Realforce keyboards.
Currently, I have a RF 87ub 55g and RF 87ub 45g ("EK Edition"). I really like the Realforce boards. The have a timeless classic design that looks much better "in person" on my desk than portrayed in the photos on the EK site. They are also much quieter than my HHKB. Whereas I am still thinking of a Type-S HHKB or doing a silencing mod, I feel no particular need to get a silenced RF or to do a silencing mod on the RF.
At the moment, I am dithering over whether I prefer the 55g or 45g RF. I like them both. The difference seems subtle to me, but the 55g does seem to have a slightly better sound and feel than the 45g, but using Typeracer, my speed and accuracy are somewhat better on the 45g. There are other slight differences, such as the red LEDs and improved legends on the 45g, but the black on dark gray legends are virtually invisible anyway. I have swapped out the black alphanumeric and arrow keycaps with light blue caps with black dye-sub legends, leaving all the other keys black -- I think this color combination looks great on the black RF.
I am fairly certain that I would not like a variable weight RF, and I don't feel the need for a silenced version. The RF 87ub 45g and 55g boards are both excellent and are now among my top favorites of all keyboards I have ever tried (in addition to the HHKB Pro 2 and IBM Model F XT).