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For racing I'd take schwalbe one pros over Conti GP 4k 2 with latex
I have both - though the schwalbes are 28mm and mounted to A23 rims, the gp4000s with latex tubes are 25mm on Reynolds 46 CCs so not an exact comparison.
I dont think there's anything to tell between them in terms of grip, feel or resistance, but the ability to keep racing even after a puncture with sealant is a major plus for the tubeless.
For racing: Conti GP 4k 2 with latex tubes or Schwalbe One Pro tubeless?