congrats on your decision
The altis as you know has the vvti engine and it is the best engine currently in pakistan. it will give you very good fuel economy and will also have a nice fast pick. overall its the best car.
one more thing about the corolla, my friend had bought xli for 960,000 in jan 2004. it was late dec 2003 model.
he just sold the car in June, and he got 1000,000 for it! a profit of 40,000. so corolla commands an amazing resale!!
as for the drive, well personally i like the drive of the corolla, i have driven GLi, the lastest model, thats why i am talking about it, and also compared the drive with Japanese toyota corona, well the GLi had a better drive and was more comfortable. ofcourse, the corona was 1.6L and was very very fast, but not a comfortable ride!
so in my opinion, toyota rulez!