Negus,
I give you one simple reason why SA!
I dont know if you have ever flown in SA, but at the moment South Africa offers one of the cheapest trainings in the world due to fuel price! and unlike some countries like Philippines at some points they didn't destroy their picture completely! (I dont know if you know about the era where some schools in Philippines gave away licenses for money!) and also SA has high standards when it comes to training.
Do I need to continue on why SA?
I know a lot of people are gonna think why not USA or Canada! just recently couple of my friends went to USA to do their training, according to what they say, the amount they have to spend in there to obtain a PPL is equal to getting a PPL and Night Rating and some hour buildings in SA!!!