Style chooser

I am going to get a new car soon. I narrowed down to Teana and Camry. I am worried especially about the after sales service problems etc. I am avoiding Mazda 6 because of some friends complaints regarding Bermaz tardiness etc. I also do not like the Honda Accord.
I think these cars suck when doing corners after driving my mother's BMW 320 but I can't afford a BMW now.
I need a reliable car for work mainly to go to Singapore a lot.
Which would be a better buy? Nissan Teana 2.5 and...