I have both of them... I have a 2007 Fortuner V and 2009 Montero GLS SE. Parehas maganda ang dalawang yan so I suggest to test drive both of them then decide which is best for you...

however, after years of ownership, ito so far mga problems na na-encounter ko.
Fortuner - Rear Shock absorber (had been replaced under warranty)
- Rattles at the rear aircon assembly (Fixed under warranty)
Montero - EGR and SCV (replaced them under warranty)
- Tire Pressure Monitor (Sensor malfunctioning - Fixed under warranty)
- Weird sound when steering (Fixed under warranty)

Montero has the better ride. For me, very comfortable sya in long drives except for the seat kasi medyo matigas pero if you pair it with seat cover that offers a good cushion then your problem is solved.

Fortuner naman, alam naman ng lahat na bumpy ride nya pero if you pair it with Racho Shock Absorber, problem solved na rin. recently, I fitted it with a 20" rims (265 50 R20), comfortable pa rin ang ride with Rancho Settings, 5 in the front and 2 in the rear.

good luck! God bless.