Try Didar Honda Egmore, or Anna salai, for a test ride of the CBR250.
Most guys here will agree the CBR 250 scores above any RE by virtue of its reliability alone.
Tubeless tyres, more mileage of 30-45 kmpl on highway, and higher cruising speed of 120-140 kmph made me choose the CBR. The stability at high speeds is another cool thing sport bikes can give you.
My CBR has done 32k kms, and hasn't left me stranded. The only blotch on the record is a CCT change at 25k kms, which costs ₹500, and takes 10 minutes to fix.