Joints out of a nicely packed joint roller usually make for the best joints. I've rolled some wicked joints that have smoked like cigarets but lasted 20-30 mins. Granted these were .5 to .75g joints. That might be too rich for some.
For blunts I like to use either blunt rolls or the giant sized white owls that come in the colored tubes. These two option make for the best blunts. Once again I use my trusty blunt roller to do all of the work. I can't roll anything for the life of me after I had an accident involving my hands. The blunts I roll usually are from .5 to 1gs. They last any were from 5-25 mins (depending on the dryness, density, wetness, or type of paper used).