Given the choice, I would prefer burning Rome to the ground that having to deal with them in the future.
Razing the city also have the semi nice effect of not painting a too big target on your back as not everyone will realised that you did it (and you will have the same power/score as before and no 2nd city added)
Razing the city also have the semi nice effect of not painting a too big target on your back as not everyone will realised that you did it (and you will have the same power/score as before and no 2nd city added)