Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
more depends on the rider than anything. but two good riders box stock bikes the 1200. would be faster most of the time it will get you dead faster too.
I would think the Sportster Would be faster off the line,  \\;but I would think above a 100mph, the Superglide would overtake the Sportster. Not sure, as I have only taken my SuperGlide above a 100 once and that wasn't for very long. Just needed to know.