I've had bents, a tadpole trike and a SWB, and used both for touring. I pulled a trailer since it was easier to switch between my various bikes. I must say that for pure relaxing while riding the trike was the best. Never worry about going too slow and weaving going uphill. You can stop, take a break, and start again without ever getting off the bike or putting a foot down. However, the trike has other issues that bothered me; ie. low, slower, and hard to see around cars/obstacles when in towns. I also have a Rans Vrex, which I've toured on. Better visibility over cars and guardrails, narrow track so easier to miss road debris. However, slow going up hills vs a DF, and just felt more tiring to climb hills. However, both are very comfortable, though you can still get butt burn after a long day.

Here's one of the tours I've done on my Rans Vrex:

http://www.crazyguyonabike.com/doc/?...c_id=1036&v=38