I used to pull a small Starcraft 8 pop-up could never back that sucker up. When my wife decided she wanted to get back into camping, we decided to go with a 5er. I have never looked back on this discission. The 5er tows so well ( I can back this one up)and has more comfort and convenance items. The layout of the fiver provides for a degree of privacy for the master bed room over a Travel trailer, in my opinion.
As I side note coming back from WI yesterday and pulling my 5er at 63 miles an hour ( I looked at the GPS speed out put) I was past by a ferd and a tag along. The next thing I knew the tag along was swaying all over the road. I hit the brakes and slowed down, till he got the his trailer under control. I let him pass on down the road. I did meet up with him in the last rest stop in WI before Il, just looked at him and shook my head.