Definitely washing machine. I can do dishes by hand easily. I hand wash a lot of dishes anyways, such as things that don't fit in the dishwasher, or my favorite pan that I use at least 3x a day.

Going to a laundromat isn't that bad. I'm happy I don't have to do it anymore, but I have in the past.

Sometimes on vacation have had to handwash things like undies and socks in the sink, and that is no fun. I couldn't imagine washing a pair of jeans in a sink!