Not a trailer guy, never had one and not really sure why anyone needs one, BUT if I did want one it would be the Entourage. Much sleeker and less "Gold Wingy" than the other ones. IMHO. Someone in our town has one, I have seen him on the road, He has a black RG that is all blacked out with the Entourage trailer with fender skirts. It does make a nice looking rig.
Several years ago I was in a group riding to Atlanta, During a stop a different group pulled in to get fuel, a girl in our group who was not a bike person at all said " Look that guy must have borrowed someones Gold Wing trailer" ( it was the Bushtec with the spoiler), always stuck with me that a Non bike person thought this.