I own a MG Norge and a ST1300. They are different ends of the sport touring spectrum. They do share a similar ergo for the rider, but substantially different for the passenger. Mrs. Spare much prefers the ST. The suspension is better for two up riding as well. But the MG is noticeably more nimble and quicker acceleration. I prefer riding the MG when I am by myself, particularly when confronted with tight curvy roads. It's also easier to act like an idiot while riding the MG.
Fortunately the ST is agile enough to enjoy those same roads and because I prefer to ride with Mrs. Spare than without it fits us very well. Horses for courses as they say.
Another thing, the only reason I bought a Honda is I am waiting for parts for the Guzzi. Now that I have it and Mrs. Spare likes it so much the MG may be on its way out.