Re: Baby fighting at the breast...
I might back off bottles as much as possible just to make sure baby isn't developing a bottle preference. Of course when necessary, like when you're gone, use them to get baby fed. But try to teach him that bottles aren't an easier alternative to having to nurse, they are only for when you aren't there.
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”