i think no... i think really 100% no doubt in my mind... that the best romantic anime would have a really cute story about a guy and a girl crazy over each other but a little shy of course... and if they never shared a kiss not once, no halfies .. nothin... just maybe held hands .. and hugged .. or comfort cuddled.. than they have a magic date and right when they seem like they might end the night off kissing.. one of them risk their lives to save the other one... THAN that would be the most romantic anime ever..
than you can have a flash forward thing and like the one left alive you see never marries or dates or anything and kisses the grave of the one they lost.