Well... In my personal opinion, all the brands are good enough as long as they are brand new and then maintained-well; Gree, Haier, Orient, Pel, etc.
Asal performance ka 5 saal baad pata chalta hai, k aya tub b AC sath daita hai (aur utnay hi damm k sath) ya sath choor jata hai.
Buy a well reputed brand (may be imported if one can afford), if one intends to use it for more than 05 years, otherwise, for 4-5 years or less, any abc or xyz brand will serve the purpose equally good.