Between the 2, i would prefer the Previa and ang layo ng build quality between the 2. The previa would provide you with more luxury and a plush ride compared with the Innova. FC and utility is the Innova's strenghts, but syempre maintaining diesel engines is more expensive.

As what someone else mentioned, try the Grandis and its an underrated mpv. I have 1 and its a pleasure to drive. Very luxurious inside, nice and ride, cheap to maintain and like the previa kaunti lang ang nasa road. I get about 6-6.5 km/l city and about 10 on the highways