Weather is subjective, too. The winters in Paris are worse, but the heat in Rome in the summer is worse.
And distance is different than accessibility. Taking the train from Paris gets me to more places I want to go than the train from Rome. And the train will be more pleasant than flying most of the time regardless of whether I'm going to Charles De Galle or whatever Rome's airport is called (I do recall it was pretty easy to navigate). I loved seeing the history in Rome while just walking around on the street, but I suspect I would feel the same way about Paris. Paris to England? Much easier than Rome to England. Paris to Madrid? Probably about the same as Rome to Madrid, but if I were guessing (and I am) the train from Paris might be quicker than the train from Rome. Germany? Paris wins. My brother in Austria? Rome wins. Northern Europe? Paris. Greece? Rome, but I'm not actually sure it's by much because I think I'm flying either way.
Food? Either way, what bliss.
Wine? France / Paris.
Dessert? Paris.
Parisians? Rome.
But just because I picked gumbo doesn't mean I don't love chili. And Rome is pretty great, too.