Given these 2 options with same conditions, model year, regular maintenance, etc. My choice would always be Corolla 1.6 (Altis)
(obviously if I could afford it).
And Corolla 1.6 is the most fuel efficient, and Corolla 1.3 is the least (Power to weight of the body ratio does matter). 1.8 Corolla lies in the middle of these 2 variants regarding fuel efficiency.
Regarding power alone, obviously 1.8 is more than 1.6, is more than 1.3. 1.6 is the most balanced option considering fuel efficiency and power.