It's real easy, up right both and let them bounce between your legs; the answer will become clear.
Ok, let's say for some reason the super light feeling of the Bonnie doesn't win you on a jiggle test, then go ride it around on the back roads and swing her through some corners. Repeat with the 60lb heavier sporty.
If you go Sporty, go 1200. Used ones are cheap.
If you want one of the best handling Bonnies, you opt for the mag wheel.
If you enjoy talking with strangers about your bike, you go Bonnie.
If you enjoy being told you ride a b*tches bike, you go Sporty.
If you want to come back and think to yourself, just how much fun you had on a motorcycle, you go Bonnie...
I let an ex-Sporty rider take my bike for a spin, he couldn't believe how much fun he had on her, how light it was, and how easy it was to upright. Of course, he now owns an FJR1300, but paid many complements to how great my SE was after riding it.