Hi! So I was hoping I could get some recommendation on a laptop for me and my father.

1. Preferred Brand: Sony or Acer
2. Budget: 6000-8000 USD
3. Usage: playing on facebook, business travelling, browsing
4. Preferred laptop/screen size: 11.6-14"
5. Processors: I3 / I5 / I7
6. Preferred battery life: 6-cell, or at least 5 hours

I'm considering the some following options:
- Sony Vaio 14126
- Sony Vaio 14122
- Acer V3-471G
- Acer V5-471G

Could you please help me to decide..?

Many Thanks