ITT: People who have never been to Vermont (or any New England state) declaring it's "clearly" the best one.
I've been to every New England state and still find Vermont to be the nicest.
At what time of the year?
March.
Try January. People used to milder climes might be in for a bit of a shock. Not to mention finding gainful employment, dealing with the cost of living, etc. Everything good about Vermont is also true about New Hampshire, except it's wealthier, lower unemployment, has decent-sized cities within driving distance (if you're in the southern half), has a lower cost of living (due to said decent-sized cities), a warmer climate (but still with plenty of ski areas and stuff), better access to medical attention should one require it, etc. I suspect Euro city-dwellers would like *living* in the nicer areas of Connecticut the best, however. New Hampshire is best for those who genuinely like rural lifestyles or are on a limited budget.