If you're buying new tires for looks, then I suggest taking your time, look around, and continue the discussion with other '19 owners. If you need a more aggressive tire now to take you to remote locations then consider remaining with close to stock size. (I sometimes go +1 on the width or aspect) Your best highway and city performance will be achieved with remaining stock. Looks are important but spending a large amount of money to replace new tires for a negative impact needs serious consideration, imo. When I go slightly larger, it is strictly for my personal mini-macho boost. I know very, very few people who would notice or value larger tires on my pickup :-)