My Jamis Dragon is 531 steel. Either the older models or the higher end models are 853 steel.
The Gunnar Sport is much more like a road bike than a full touring bike. It has the relaxed geometry like a touring bike (very long wheel base, slacker angles to seat tube and head tube) but it has a lighter weight frame (853 or OX platinum steel) and is built with road bike components. It's a luxo sport touring bike, extremely comfy ride.
The LHT is very comfy, and will carry anything I can manage to strap on it, but is like a tank - slow and heavy. I think my LHT rides better with a full load on it.