Hey there,
They are actually very alike in terms of performance, WTB, Read/Write. Can't find the random IOPS for the Kingston. I suspect that's also same/similar.
I think in this case, it comes down to price. Whichever is cheapest.
edit: Actually the Kingston is a PCIE 4x Drive. In theory the same performance nonetheless. The Apacer is a PCIE 3x drive as far as I can see. If you have a mobo which supports the 4x drive, I'd go with that one.