I'm gonna use the name of this thread as inspiration....tell him to grow some breasts before he comments on how baby is fed. Fed is best, be that breast milk or formula.
My in-laws are exactly the same. Whatever choice I've made they have had something to say about it. I've been really stubborn and stuck with what I wanted to do, so I've used a dummy, she's bottle fed, I've done BLW and traditional, she goes the nursery and has done since she was 10 months old. She has a taste of chocolate if I'm having some. Only the weekend I reminded them that I'm with her the most and they are with her for a couple of hours, so their preferences don't matter. My advice, which I wish I had done earlier, is to point out that bottle fed babies and breast fed babies will both still want mcdonalds as toddlers. That schools can't differentiate between the two. And most importantly, your baby, your choice.
As for hubby, I think they all go through this phase, mine certainly did and still does. Point out to him he can have his time if you can have your time. Or do the petty thing and hide the Xbox controller or his fave game (I did these for a weekend, it certainly made him rethink)