The Kingston KC3000 2TB wins in 3 out of 7 comparable specs, with 3 ties. Its biggest advantage is Endurance (TBW) (129% better).
Rocket 4 Plus 1TB wins in 1 spec (MSRP: 29% better).
Recommendation
Choose KC3000 2TB if you want the best overall performance — especially endurance (tbw).
Choose Rocket 4 Plus 1TB if msrp matters more to you.