Comparison between brands

Confused between what brand to choose during your aircon purchase?

I will do some comparison between different brands for inverter outdoor units.
I suggest getting an inverter unit if you use the aircon units daily for > 6-8 hrs.

I will compare the 3 brands outdoor units which i usually will recommend to my friends for aircon purchase.

Daikin inverter sys 3 R22 gas model :: 3MKD75DVM
Cooling Capacity
This unit has around 27k btu.

Noise Level 

Noise level for all inverter models, i feel that its quiet so no issues if the unit is working normally.
The rated db is 46.

Energy Consumption 
Max rated amp is 13.4 amp.
If unit is running @ part load, amp is around 6.5 amp.
Based on $0.2878 per kwh.
It will cost $0.43 per hr to run the outdoor unit @ part load. 

Mitsubishi Electric inverter sys 3 R410a gas model ::MXY-3A28VA
Cooling Capacity
This unit has around 27k btu.

Noise Level 

The rated db is 48.

Energy Consumption 
Amp stated is 8.5.
If unit is running @ part load, amp is around 6 amp.
Based on $0.2878 per kwh.
It will cost $0.39 per hr to run the outdoor unit @ part load. 

Panasonic inverter sys 3 R410a gas model ::CU-3S27MKZ
Cooling Capacity
This unit has around 27k btu.

Noise Level 
Unknown.
Energy Consumption 
Amp stated is 9.4amp.
If unit is running @ part load, amp is around 6 amp.
Based on $0.2878 per kwh.
It will cost $0.43 per hr to run the outdoor unit @ part load.

All information are taken from catalogue/information given by airconditioning technicians.  
Energy consumption is a rough estimate.