What breed? Some breeds tend to be more energetic and sensitive than others. Energetic and sensitive is not what you want in this situation. Arabians, Thoroughbreds, even Saddlebreds, can be quite energetic and sensitive.
I wouldn't usually recommend a Warmblood horse (these are bred for sport - jumping and the like). Warmbloods, good ones anyway, are expensive, but also have very bouncy, energetic gaits, and tend to be INCREDIBLY cheerful about being naughty and have a very highly developed sense of humor on the subject of obedience and less skilled riders. There are exceptions, of course. I have one, but no one will ever get him from me til I die, LOL.
Drafts and draft crosses aren't for everyone, as Pat said. They DO tend to know how big and strong they are, and they can indeed require a strong hand. But when you get a good one, you really get a good one. Some people get on very, very well with them. With some exceptions, they can be quite difficult to get into a canter, though, they just weren't developed for that. But for a long time, cantering may be the LAST thing you want to do, LOL.
I wouldn't assume too much about husband, though. One fellow I know got a wild idea to get a horse when he was 40. He had never ridden at all. His wife was wringing her hands and trying to figure out WHERE he inherited this startling ailment from and why it had waited to pop up til after their marriage.
Well he spent a while in lessons, and he just kept at it, and he just got so he loved it, and wound up going fox hunting, jumping, and like most men after a few years he was eyeing his sweet old beginner horse and saying, 'I want something Faster, Bigger and Cooler'. Or he may just go on for years, shuffling along on Old Reliable, and having a great time.
No mistake though, that first beginner horse is a must. And that horse should be very laid back, very easy to ride, a little on the slow side, and probably not at all Fast, Big or Cool. A real 'been there done that' type of horse that can be ridden safely even after a few weeks of Christmas vacation, when the wind is blowing or the other horses around are hopping up and down and acting like twits.
One of my favorite beginner breeds is the Fjord. They are not as cheap as draft horses, but wow. They tend to be very reliable and steady, and while not horribly sensitive, they are easy to get moving, one isn't ready to have a coronary by the time one gets them going, but they won't go off screaming into the sunset either. They are very handsome animals, usually rather wide and stocky, but not terribly tall...or brown. They're generally a sort of light tan color, with dark edges to the mane, tail, legs and face. OCCASIONALLY you find a BROWN one, LOL!
A bunch of pics of them here, scroll down a little:
http://www.mirrorkbranch.com/gallery10p3fjordhorse.html
about half way down this page:
http://hatterasislandhorsebackriding.com/2515.html
fjord site:
http://www.horsemanmagazine.com/2008/08/norwegian-fjord-horses/
Usually... usually men think they are 'really cool'. Once they find out they are 'The Horse of the Vikings - and the Vikings were Real Men', they usually say, 'Cool!'
You might consider this. Find a riding lesson barn, and find a horse that the instructor thinks he does well with, and take some lessons on that horse for a while, and then after having lessons for a while, buy that lesson horse.
Yes...some horses at lesson barns are old, lame and on their last legs. But if it's a decent place, if the horse is checked over by a vet, most of what's wrong with it should be known, and the vet can offer an opinion as to whether it would really interfere with some casual, family type riding.
Not everything 'wrong' with a horse really is 'significant'. For example, a lot of older, very nice 'high mileage' horses have some arthritis in their legs, but casual riding often keeps them limbered up and comfortable. They may not be suitable for galloping, jumping or other hard work, but may make a great family horse.
The advantage is that you can see that hubby and the horse get along.
There's also the possibility that after a few lessons, hubby would change his mind and decide he's not interested in owning a horse. And knowing that is better than getting a horse and not wanting it any more (the market is bad now, a lot of horses are for sale or being given away for free, as people have lost jobs or income or both).
It's awful hard to explain to people, but owning a horse is very different from riding it at a lesson barn. At the lesson barn, the instructor keeps the horse's training in place by 'tuning him up' now and again. More advanced students also 'tune up' the horse, and keep him from taking advantage. If he's only being ridden by a beginner, he might get, well, not so obedient.