If you choose to go to Bretton Woods, it has about 7 lifts and a true newbie can ride every one of them and ski down with some confidence. Whoever laid out BW did so with the intention of making every peak available for beginners. I wish they would print out a trail map just for Green Trail skiers. I worked one out myself for a friend I took skiing last season who had not skied in 30 years and was terrified. She had a great time there. For a new green trail skier, there is so much variety at BW. There are even very easy glades off the lift to the far west which a beginner can try. The base lodge is well-appointed, and if you stay in any of the Omni lodgings nearby you'll be pleased. You can also stay in North Conway and drive over to Bretton Woods. It's a 40 minute drive. From North Conway, as one other poster has said, you can ski Wildcat (great views of Mt Washington and Tuckerman Ravine from the summit!!!, limited beginner terrain, old New England feel even in the old lodge), Attitash (two peaks), Cranmore (over-crowded on weekends, small, but right in town, with night skiing and TUBING too!!!), Black (tiny; see the horses!), Sunday River (large resort over in Maine, 1 hour drive, multi-peaked, several base lodges, and plenty of varied terrain), Shawnee Peak (small), and King Pine (tiny). North Conway is a skier town, full of ski bars, all kinds of restaurants, and even several outlet malls. N. Conway is decidedly middle-class and down to earth, not "terminally quaint" like tony Stowe. You'll find MacDonalds in N. Conway, for instance, but not in Stowe.
Skiing Bretton Woods as an advanced/expert means either you go into the glades, or you entertain yourself on fairly flat but well-groomed, wide, blue runs. So let's say the two of you go to BW. She skis the easy stuff, and you ski the glades. The glades are graduated, from very simple and nearly flat to tight and gnarly. The mountain is known as a flat mountain, so they have made sure there is some challenge for the experts who come with their not-so-expert families. That's why you'll find glades pulling off so many of the lifts. Crowds aren't too bad except for holiday weekends. The grooming and snow-making is exceptional. They cater to one-week-a-year family skiing, so it's still an "intermediate's paradise."
If you stay near Bretton Woods and want to venture out, Cannon is 15 minutes away. It's a skier's mountain, perfect for the guy who wants to ski off-piste (well, if it snows). A beginner will be challenged, but a guy's gotta have his day, right? Ask the locals about the off-map skiing, or if it snows, go over to Mittersill and ski the narrow ungroomed old-school trails. Mittersill is totally natural; no snow-making, no grooming. Just one double lift, and amazing goat paths and narrow twisties all the way down. One big glade fills its middle. Or ... keep to the hard-snow groomed steeps on Cannon proper that delight the racers for whom this mountain is home (Franconia Ski Club).
Loon, another 15 minutes farther from BW, is a large resort, a magnet for Boston drivers who come up to ski. Avoid the weekends there because of the massive lift lines and crowded lodges, but weekdays are fine. Loon has extensive terrain and a small ski town attached - Lincoln, NH. Woodstock, NH, is just across the highway (seems like every New England state has a Woodstock). You could stay in Lincoln or Woodstock and ski Loon, Cannon, and Bretton Woods. Lots of lodging is available there, along with all the eating you'll ever need.
Just a word about Wildcat on the east side of NH and Cannon on the west. Both of these spots are retro - the trails were put in back before snow-making, and their original character is still quite evident. You'll find narrow windy trails bordered by tall trees - narrow before snow-making meant shade from the sun so the snow wouldn't melt, and windy meant wind would not blow the snow awa before grooming. Both are quite picturesque. Buy a lift ticket at Cannon and you can ride the Tram up Fri-Mon. That's a blast, but beware, Cannon can be quite icy. Check out the history of Cannon on line - it was the beginning of skiing in the USA.
If you ski Wildcat one day, stop in across the highway at the headquarters of the Appalacian Mountain Club after skiing. They serve family style meals there at 6:00 pm 365 days a year. Local Color at its best! The through-hikers on the Appalacian Trail will be there, along with all the ice climbers and winter hikers. These are the die-hard mountain lovers you'll be eating dinner with, and they will have stories to tell you as you gobble up the well-cooked meal. The people behind the desk in the gift shop can tell you all about Tuckerman Ravine hikers, and all about hiking in the White Mountains in general. You'll want to come back in the summer to hike up to the summit of Mt. Washington. All you need is some fitness and the right equipment.
If you want to do other stuff besides ski, Bretton Woods has a Canopy Tour that is available throughout the year, including the winter. It includes rope bridges through the canopy, zip lines, and other adventurous things. You might enjoy that as a break
Oh, and if you don't stay in an Omni hotel or motel near Bretton Woods but drive over there to ski, be sure to go to the Mt. Washington Hotel (a magnificent grand hotel from the past with some serious history) after skiing for a cocktail in the lounge. Memorable!