This town may be small, but it delivers big on quality-of-life amenities.A clear skyline of New York City seen from Cliffside Park, New Jersey.Credit: Kena Betancur/Getty ImagesMidsize towns, with populations between 25,000 and 100,000, offer the best of both worlds: the friendliness and familiarity of small towns, along with access to big-city amenities. Recently, AARP released its ranking of the top midsize communities in the country, and the …