It sounds like we have the same trailer. The main reason I bought my Wanderer Wagon (same as the Tahoe Transport) is because I wanted a 5th wheel. My former trailer was a bumper pull and even a 3 hour pull was stressful in any kind of wind. Now with the 5th wheel a trip to CA is no problem, just like driving without a trailer except for the increased fuel consumption!
I have read where the bumper pulls are much better if you take them off road, like through deep ruts or off cambers. The 5th wheel will possibly rub on the top of the bedsides. If you are mainly pulling over the road, no comparison in handling.