Interesting question. Since you seem to already have an idea of the bikes you like, the best test is to try one. As suggested, lowered suspension may be all it takes for a good fit.
Weight is one of those illusory things. A BMW feels lighter than it is because the weight is low in the frame. Similarly wide handle-bars make a bike easier to control, particularly when stopped.
When it comes to motorcycles, the weight discussion is generally focused on how light an off-road bike is, or power-to-weight ratio for a sports bike. Which suggests most riders find a fit they are comfortable with and total weight isn't a significant issue.
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