I don't know... I can see a flip-side to this.
My maternal grandmother is a widow, aged 85, who also has four children - my mother (who lives almost 400 miles away), two uncles (who live in the same town) and an aunt (who lives in the next county, so maybe 40 miles away). Every year, there is the "who'll have her for Christmas?" debate.
And it is a debate. Because she is nasty - although her children all describe her as "irritating", too. My two uncles refuse point blank to have her in their homes/have anything to do with her (she's never met her youngest grandchild as a result of this NC). My aunt will use her for child-care (of her younger teenage son) and has recently proven herself to be a real chip off the old block. My mother, who is the oldest, feels guilty. As though she ought to drive up to collect my grandmother, bring her down to spend Christmas with us (my parents, my children, myself) every year.
Every year, my father tells my mother that my grandmother is nasty, that he will not have her in his home.
Every year, I point out that if she wishes to spend Christmas with her mother, then that's absolutely fine - but she will not see me, or my children until my grandmother has been driven home (again, by my mother). We'll just have a belated holiday, I tell her, and the children and I are okay to celebrate on our own (only child, here!).
Every year, my mother makes plans to have my grandmother down for Christmas... until she announces (always at last minute, the day before my mother is due to drive to collect her) that she's "had a better offer". every year, she guilt-trips my mother and then breaks her heart... but that isn't why my father and I know that she's nasty.
That would be because, whenever my mother isn't around, my grandmother has gone out of her way to destroy Christmas for my children (she told my over-excited and bouncing in his seat at the dinner table, whilst telling us all how much he loved the gifts Santa had brought him, then 3 year old DS, that Santa "doesn't exist" and that she was going to take all of his and his 11 year old sister's gifts "and burn them on a big fire". My father over-heard this. I was sat right in front of her when she said it (and promptly gathered my children... and left). My mother... still doesn't want to believe that her own mother could be so nasty).
So, there may be a flip-side. I'd ask your husband why he doesn't like your mother, if I were you, and be prepared to listen to something she may have said/done that shows a side to her you either haven't seen before, or simply don't want to acknowledge that you've witnessed, OP. I'm willing to bet there's a whole back-story that you're oblivious to...
(Incidentally, my grandmother's been a widow for almost 20 years. She was nasty - actually physically abusive to me as a child, which is why she has never been allowed to be alone with either one of my children - before my Granddad died).