Think I'd go for an R6 or maybe an R1 - BUT it all depends on being able to touch the ground.
I tried to have a go on my hubbies R1 but he'd stopped it on a very slight camber on the road, so when I tried to get on, I was very nearly pushing it over!!
He says I'd like the smoothness of a 4 cyl!! I had a go on his Fazer 1000, with him as pillion. Having his weight on the back meant it lowered enough for me to touch the ground!! That was smooth.
I'm not sure, tho as I love my SV.