An OEM oil filter is around £12, there's really no reason to use anything else unless you're running a car on a shoestring budget. Sure there may be aftermarket filters that are as good or even better, but how are you going to know when the company gets sold and the new owner suddenly starts cutting costs by having all the parts made as cheaply as possible? The OEM filter may not be the "best filter" but it probably is the best chance you have of consistently *not* getting a bad filter.
Anyway that's a side discussion, it's more about looking at the overall picture and those things are clues as to how the car has been treated. If they're all brands you recognise or can find good information about - great. If they have no branding or are the cheapest stuff available online, mismatched budget tyres and a dodgy-looking battery, I'd walk away from that car.