A few years ago I bought a Selle SMP Glider for my touring/winter bike, just based on the praise coming from an owner of one who I met on a ride.
I'm happy with it, but to tell the truth I'm even happier with the Selle Italia Flite 1990 I have on two of my other bikes. Now I've spent the last 20 years riding mostly the SI Flite 1990, so it might be that my backside has just adapted to it really well.