Out of two, classic 500 & standard 500, which one is more good on road regardless of milage or price.Fight Now I Am Using 2007 thunderbird.I need to change the old one

Out of two, classic 500 & standard 500, which one is more good on road regardless of milage or price.Fight Now I Am Using 2007 thunderbird.I need to change the old one

Question asked from: http://www.carandbike.com/royal-enfield-bikes/classic-500