Great info, thanks everyone. I guess I won't take a chance on row 6, mainly because I dislike the trays in armrests. If both rows had them it would be a wash and I would probably go to row 6 for quicker deplaning and a chance to see something out the window other than the wing. Since the seats are wider in the exit row because of regular armrests I think I'll go that route (tall people have proportionately larger waists
).
On that note, I wish more aircraft/airlines had regular tray tables in the exit rows (where possible of course).