Dont choose a country for training because your mum will have troubles visiting, choose the the country and the training organisation that best fits your requirements.
If your plan is to return to the Philippines immediately after CPL then ask the CAA which license they recognise. No point spending your money in either country if they wont convert your license. If you hope to gain employment in said country find out if you have the right to work in that country. Because without the right visas you wont get a job.
In regard to which licence is the best, well it depends where you want to fly. But with a basic CPL and a few hundred hours each will be as useless as the other. If you gain an ATPL down the line then most countries will transfer your licence as long as it belongs to an ICAO state.
I am of the belief that to convert your AUS CPL to FAA CPL you will have to do all the exams again and a flight test. So if you want to hour build then think long and hard about what your desired outcome is. Make a spreadsheet of pros and con and expenses. You'll soon come to the right conclusion. Dont do it on a whim.
Good luck. Any other questions feel free to pm me