Dunlop (korean) available in R12 got a lot complaints like bulging, loosing shape and balance etc
Hankook (Korean) comfortable but wears out quick also not resistant to bumps and potholes.
Linglong (Chinese) No idea
Bridgestone (Indonesian) not recommended coz they loose there grip after few months but remain comfortable till the end.
Bridgestone (Japanese) will be expensive but it will prove to be the best tyre for your khyber. Its silent, comfortable, griping, long life ....
Nexen (Korean) is the best buy in its price. Its silent, comfortable, grip is acceptable, some how a bit loose in corners, very resistant to bumps and potholes and punctures, long life, affordable... Metro has Nexen SB702, also check that one out it may save you a couple of hundred bucks.
Yokohama (japan) same as bridgestone (Japan) or may be better in some aspects like comfort but they produce more road noise.
I hope this will help you decide.