TD cbr before going by the popular demand.
Most who have driven both must be comparing a brand new cbr with a moderately used r15. Things take a while to get ued to and a new machine is not always as smooth.
I was uncomfortable driving R15 when I 1st rode it...but that is because im used to riding HH Hunk for around 3yrs. It takes a while to get used to. Just see if sitting positions are not stressful and choose whichever that feels better wrt your usage.