General AC is the father of all ACs, others look quite ordinary in front of General AC cooling.
Mitsubishi slim is assembled in Pakistan, so it does not have the same credibility as made in Japan one. Mitsubishi heavy duty is made in Thailand only and consumes a lot of electricity, same as general but cooling of general is much good.
Gree although inferior to general, mitsubishi, Daiken and Panasonic is a value for money, the best the money can buy in that price range