I love my USRC (US Roasters Corp) roaster. Every year at the roaster's guild they line up the different manufacturers roaster, and roast the same bean in each one of them, and then taste them. USRC won 3 years in a row. They combine the standard drum roaster with the science of air roasters, to produce the best of both worlds.
Built-in sprinkler system, in case of fire. Safest and smartest roaster on the market. And cheaper than the competitors. I've visited a couple dozen roasteries, and I wouldn't trade my roaster for any of the others I've seen.
But to answer your question, San Franciscan would have been my 2nd choice. They have a lot of good things built into their machines as well. You'd probably be happy with either.