None. Get Intel, Mushkin, Kingston, or if You favor fridges, get Samsung. Both SanDisk and PNY are basic solid state drives quality-wise. And from those two, I'd get SanDisk, but it depends on which model, of both. Can You list them?
Unfortunately I'm currently dwelling in a quite remote location and my only offerings aside Kingston's V300 - which I dislike due the NANDgate affair - are PNY's XLR8 Pro and SanDisk's Ultra Plus. I'd love to get a Samsung one if the situation where more favourable.
As I said, the PNY one is the XLR8 Pro that comes with a SandForce SF-2281 controller. I'm not sure on the sort of NAND but I think it's Micron made 25 nm MLC chips.
The SanDisk offering is powered by a Marvell 88SS9175 controller and uses SanDisk's in-house 19 nm MLC NAND.
-
I don't really need superb performance as they're going to replace a regular 5400 rpm HDD on a notebook and the performance gain will be dramatic either way. Data integrity, on the other hand, is something I deeply prize.