Ideale 90 for traditional leather
Cinelli Unicanitor #3 Buffalo for plastic covered.
All plastic Cinelli for "rain" bike.(becoming scarce)

The #2's I did not like as the suede finish compresses down in short order, so what was the point? Looks cool on a wall hanger.

Ideale 90's have been hard to get on ebay, for a while there was one guy who I think was trying to corner the market, he won about 8 auctions in a row, I have gave up for a while.

One advantage of using all Cinelli saddles, is it makes setting up a position on the bike much faster.