Hmm that's interesting. I actually live in the downtown and do my riding in the downtown for the most part. Speed isn't my concern as much. I'm still thinking an R6 might suit me better. I know for sure I prefer the R6 over a GSXR. Something about the seat on R6 fits my body better both when riding and when pushing the bike while sitting on it (reverse and front).The battery location should not be an issue any longer on the 2013+ models, I've opened one up and it now sits across just under the rider's seat. So you could go for a 2013-2017 ZX6R 636 if you still want a more torquey 600 supersport.
Honestly as much as my 05 is a headache to maintain electricals, i'd much rather ride it than a R6 or CBR600RR because it does better in stop go traffic and long straights, which is part and parcel of my riding experience living in a city.
R6's are only fun on a track where you can wring the bike out and keep it at 200kph and 11k+ RPM non-stop until the end of your session, because the gear 1-3 sub 9k RPM experience is like moving off on snails.
Does more torque really work well with the stop and go traffic? In my case I got a smaller bike right now and I'm sure the R6 would be much torqier at low revs than the 200cc I got.