A new Rasmussen Reports survey finds that 61 percent of adults rate their lives today as good or excellent. Among the most satisfied are married adults, those with no children at home and people with the highest incomes. Of the 1,000 men and women surveyed, 58 percent consider the years from 18 to 49 as the very best, 17 percent ultimately prefer age 50 and up and 14 percent maintain that childhood takes the cake. The rest are undecided.