I've had an 01/W FD from the early 90's too and just picked up a Triton Extreme. While I haven't gone through all the sounds yet, I must say that the choirs and some of the string patches have not found a rival on the Triton. I use a lot of those in my music, so I've been considering sampling some parts over from the 01/W to the Triton to take advantage of the more flexible sequencer. I don't know enough about sound creation to recreate them in the Triton.
Maybe with a little tweaking I can get the Triton choir to sound a bit better, but it doesn't have the same feel that the 01/W's program B37 has. Another one I haven't found a rival for is combination B97 for strings...aptly named.
You know it's bad when you see license plates with a letter followed by a number and you immediately think of which sound that corresponds to on your keyboard.
