Fiesta.

Btw that fiesta pic you posted is only 2 doors. Malaysia Fiestas have 4 doors.

In the short term, both brand offer 3 years free maintenance, although Ford offer 5 years warranty.

Parts availability, I know Ford fares kinda poor in this department when it comes to major parts. Not sure about Mazda.

I have test driven both cars, Fiesta S wins my vote simply because it is just much more fun to drive. Besides, I hate the M2s auto gearstick that hangs below the dashboard like the new Myvi, instead of on the floor.