The XLII provides a considerable amount more headroom inside which some people like. I've also heard that since the floor is lower on XL that the handling/cornering is a little better but i've not driven an H so can't attest to that personally. On the other side is the H provides additional sq footage because it is useable floor space all the way to the rear of the coach. Some H's have a rear bath which is not possible with XLII. Either way you can't go wrong. Both are amazing machines that really have nothing else comparable.