Alright. In that case, the world is your oyster then. If you are going FZ09, go for the 2017. If you prefer retro design, go for XSR900. If you know you'll be hitting the tracks a lot, go R6.
You come from a dirtbike background, and most dirtbikes (that I've ridden) have twitchy throttles. So you should be fine on the 9s (xsr900/fz09). Start out in B mode for a bit. But don't get me wrong, it will still be a mind-blowing sensation when you experience it- it is very dangerous and the R6 will be "safer" for you since the low end power is kind of crappy, so in the low revs the R6 will be more docile. The R6 becomes dangerous at higher revs. The 9s are dangerous from anything faster than stop- but then if you are able to come to terms with it (like I said you may already be used to twitchy throttles, so as long as you have that smooth right hand, you'll theoretically be ok), then congrats the bike won't get any more dangerous.
Commuting wise, generally I'd recommend naked over supersport EVERY.SINGLE.TIME. Either of the 9s will have better low speed handling for stop and go and its a huge difference. Back in the day every one just rode supersports because that's all they made, but with the abundance of naked bikes being made in this age (new riders are definitely spoiled with some great options), the naked bike just does city riding so much better. But the backroad city commuting with little to no traffic stops in your case, the R6 might be more fun.
How's your back? Do you have any lower back problems? If you do, stay far away from the R6. You don't readily feel it, but 15+ minutes and the r6 will be the worst decision you'll ever make if you have back problems.
Anyway, those are my thoughts on it. Regardless, proceed with caution.
Thank you for your time Sir much appreciated. I will let you guys know what I decide on!