While ceramic blades are great for long lasting edges, they require A LOT OF WORK before you can expect longevity with your carvings. I had to to work on my ceramic blades about a half an hour on each side. If you look very closely at the bevel of those blades as they come from the store, there are a multitude of serrations. (use a magnifying glass). When you work all these out and make it smooth, they will cut a thousand times better. That being said, the blades from Leatherwranglers seem to me to be the longest lasting for carving without stropping. They have a great metal blade that they researched extensively and I use it regularly. It's always the first one I grab. (I've tried almost all blades too, Henley, ceramic, Chuck Smith, Al Stohlman brand, Barry King, etc...)
Marlon