Back to the hitch question from the OP.
Many TDR members use the B&W turnover ball hitch and love them. I don't, but won't criticize them.
I use an ordinary Reese 20k fifth wheel hitch. I bought it in 2003 when I purchased my first fifth wheel, a second hand Travel Supreme. The Reese hitch has been used in succession on all three Dodge Ram duallies I've owned and was used for my three year, 400,000 mile "adventure" as an RV transporter. The hitch has about 250,000 to 300,000 towing miles on it and still works as well as it did the day it was installed.
Reese is the oldest RV hitch manufacturer in the USA having started back in the '50s, perhaps the '40s and is still going strong, selling most of the hitches used by RV towing consumers.
It is not my concern which hitch anyone chooses. I would encourage anyone to shop carefully and buy a brand name from a company that has been in business for a long time, not one of the recent arrivals in the industry which are priced about the same but are not built as well.
To the OP again, be careful with selecting a fifth wheel to tow behind a Ram 2500. Don't buy one that will overload the rear axle and tires of your truck because your wife loves the floorplan or fabrics or because the salesman tells you what a deal it is.
A Ram 2500 can safely carry somewhere around 2,000 lbs. on the rear axle. Weigh each axle of your truck loaded with wife, kids, dogs, fuel, tools, and fifth wheel hitch before you shop for a trailer. Consider additional items you may later want to carry such as a Honda portable generator, or whatever.
Subtract the actual rear axle weight from the rated weight which is posted on a decal in your driver's door post. The result is your maximum allowable kingpin weight. Know what that number is before you walk onto a dealer's lot.
A normal fifth wheel travel trailer, loaded for a family vacation, will carry around 20% of GVWR on the kingpin. A fiver with generator can carrry more kingpin weight. Don't pay any attention to what an RV salesman tell you. Pay no attention to trailer "dry weight", shipping weight, or any other phony number. Consider ONLY the GVWR from the VIN tag on the left front.
A fifth wheel trailer with a GVWR of 12,000 lbs. will carry 2,400 lbs. of kingpin weight on your rear axle. A prospective buyer must understand, a travel trailer has limited weight carrying capacity for LPG, water, canned goods, linen, clothing, camping accessories, and personal items. Manufacturers don't build them to carry huge volumes of cargo because the frame, running gear, wheels and tires would cost a lot more money to build. Also, manufacturers are aware that a high GVWR figure scares away many buyers. A trailer will weigh very close to GVWR (sometimes more, sometimes less) when the average family pulls out of their yard for a weekend trip or vacation.