I usually use no title at all, but when I absolutely have to I am Dr Chocciechip and DH is Mr Ordinaryname. I like it that people who assume 'Mrs' and start arranging their faces into a smirk when I hesitate and they think I'm about to say Ms, then have to re-arrange their faces into something else when they hear Dr. It does neutralise the judgemental attitudes, even though I know (and don't care) it can come accross as pretentious. Also, I have to say that after years of slog, the possibility of going from the option of a name that defined me by my hard work, to one that defined me by my husband's identity and my marital status didn't sit well at all.
DH was originally a bit bemused, but says he now thinks it is "freakishly weird" that the norm is for women to change their names, and loves it that I didn't. He seems to talk about it a lot with others at work and always bringing home anecdotes of debates he's had with other men.
But I am also a coward. DH's family have no idea because its the sort of topic that would only come up if I made a pointed issue of it; and I haven't because his very elderly pugnacious bullying father would have a fit and the long drawn out drama, plus attempts to publically embarass me, are just not worth it. After we got married FIL relished saying 'Will the Ordinary names be joining us for dinner' etc, slamming home over and over that I was now 'one of them'. It was pointed. This is accompanied by similar mentality of 'You're one of the family now' to essentially justofy his new right to talk to me how he likes. He's a right sod. Infuriates me.
So I have tolerated Christmas cards addressed to Mr and Mrs (which, I think given that I am a Dr and they've known it for years, is especially telling).
But things will be hitting the fan soon because we're expecting our first child and all the complications surnaming him/her will bring. FIL is going to be intolerable, and I am dreading it. My name and title matter a LOT to me, and I am always baffled that other people, even if they have made other choices, which I respect, can't see why.