6 aircraft and 7 cabin layouts, from the 72-600 to the A330-900. Pick one for its seat map, the best seats and the seats to avoid.
There are seat maps for 6 Cebu Pacific aircraft here: the Airbus A320, the Airbus A320neo, the Airbus A321, the Airbus A321neo, the Airbus A330-900 and the ATR 72-600.
The Airbus A330-900, with 459 seats: 459 Economy in its main layout.
The Airbus A320, with 28" to 30" of seat pitch in Economy and seats 18" wide.