I know it would hurt many's feelings, sorry in advance. But I would say
1- Suzuki Liana. 2009-10 (Very comfortable but weak front suspension)
2- Lancer. 2007 (I am not impressed as I was expecting)
3- Corolla. 2009-10 (Hard but good for Pakistani roads)
4- Civic. 2005 (Bad, bumpy because of so many rubber bushes in suspension)
We have now upper 3 cars, sold out Civic years back. Not only me but all of my family says this grading.
Nissan Sunny should be a good car in comfort. I dont know about new Sunny, I used to have an old model. That was really comfortable.