Have owned Trail King tags and lowboys in the past.
You can't go wrong with one of the Big 3 in the NW, Eagar Beaver, Trail King, and TrailMax. Plus these brands will have the best resale value.
In these 3 brands the Trailers are almost exactly the same length, deck, etc. The only bad thing in my opinion is that the Trail King only has a 8 ft. wide deck standard, while the other 2 brands have a 8'6" wide deck standard. As for the ramps, ours just had regular ramps so don't know how those assisted ones are. But anything that helps is good, we still have our Eager Beaver trailer with the ramps and I hate flipping those up compasred to using our TrailMax tilt bed.