@s55, keep LG out of your list.
Recommended AC by every AC mechanic is General Japan, always. But its very Heavy on Electric Bills ! I mean if it lasts long but on average consumes 4k of electricity / month instead of 2k , then you ll end up paying 10 - 20k more in Electric Bills each year.
People using Haier are satisfied with their billing , so are Mitsubishi people.
If Mitsubishi and Haier dont have much difference in their prices, then for your satisfaction go for Mitsubishi, you had a bad experience with washing machine, thats why.