It’s summertime and for many of us, that means there could be some traveling in the weeks ahead. While carrying bags and walking through busy airports and train terminals can be a hassle, one way to make things easier is to use suitcases that are both durable and easy to handle.To find the best suitcases, the Consumer Reports National Research Center surveyed nearly 65,000 Consumer Reports subscribers. We got viable data back from 27,191 people (a brand had to have been rated by at least 1...