Any feedback?

I need to replace my car's battery. I will be using the car for 6 months or less as I am selling it already. I don't want to spend too much on a new car battery so I am deciding between the two:

Oriental 2.5k including trade in
Negative: If I claim warranty, I will be given a service battery and it will take up to 7 days to replace

Champion: 2.65k including trade in
Negative: I have no feedback on the brand
I can purchase this at a Motolite outlet near home and I know that I will not have difficulty claiming warranty since the people there know me already but then the quality of the battery is questionable