1. Budget? 22-14K
2. Display type and size? min 4.0, preferable S-AMOLED
3. Form Factor? bar, slider, flip? Doesn't matter
4. Preferred choice of brand? Sony/Samsung/HTC/LG
5. Preferred input method (QWERTY, touchscreen, numpad, touch-n-type). touchscreen
6. What camera option you want...