Choosing your seat on an airplane is a big deal. People obsessively check SeatGuru.com before picking a seat or even pay more for a certain position on the plane. Why? "It's a rare opportunity to have some control over your environmen when traveling" explains psychologist and University of Washington professor Jonathan Bricker, Ph.D. "That's very significant for the traveler." Indeed, ask people whether they're an aisle or window person, and they don't hesitate to answer. (In case you're wondering, based on Expedia.com cutomers who indicated a seat. preference, 55 percent. prefer a window seat. and 45 percent. prefer an aisle seat.) So yahoo Travel researched, asked the experts, and picked the brains of frequent. fliers to find out what your seat choice says about you.