On my opinion the best resort in Vt is Jay peak without a question, but I don't think is for you. It tends to be on the intermediate to expert level, and I don't think it justifies the drive from Boston just for the greens and blues, the resorts good part are the glades and some blacks. A good choice for you is Okemo, they claim to have the best snow in the US east coast. Their terrain is pretty calm lots of green and mild blues, perfect for both of you to have a great time in good snow conditions (weather permitting).
If you want to drive a little more go to Sugar bush, great intermediate terrain and they get much more snow than Okemo, although conditions may vary a little more than Okemo. The thing about Okemo is their state of the art snow making system and are professionals at grooming, and ice is not to likely to be found, well in comparison with other places in east.
Have fun and be safe.