Presumably your husband knows your feelings towards his father? If so, I would be quite insistant on this. Its all well and good him saying what he wants, but you have a say on this too as the child is both of yours. Offer a compromise - have evano as a middle name as it clearly means a lot to him - but I'd stick to your guns if it really makes you unhappy.
That said, if you're just trying to spite his father by not naming the baby after him, then maybe you need to address your issues with this man as thats not really fair on your husband.