I happen to find both the SLR and Arione to be really uncomfortable, even with padded liners.

Everyone's butt is different but as I recently said in the RG thread, The Concor is my favorite saddle. The shape prevents you from scooching yourself forward or back on it and when you have it dialed in just right, it's a little slice of heaven.

Another good choice if you don't want to shell out the money for a Concor is the Charge Spoon.