I have been using Panaracer Ribmo 32c for the last 2 1/2 years on my Salsa Casseroll. Just replaced the back one and moved the front tire to the back. It has been more than decent and I could easily see someone using them for a mix of commuting and recreational riding.
I hear great things about Schwalbe Marathon Supreme, but they are expensive. Maybe next year, I might switch to those just to change things up.