Provincial fleet use, for barangay roads? Suzuki Jimny.

Fuel economy is so-so, and space is very tight, but parts are very cheap, and it'll last much longer than any of those sedans. Resale value is also pretty good.

In-city, go for the G4 or the Vios. Best space+economy. The Rio 1.2 is also a good choice, but parts availability in the provinces will be an issue.