I'm having a hard time following this thread. The question is should I buy a 2018 black/white stealth with 19" wheels, or a 2019 blue/white (?AWD) also with 19" wheels. You don't specifically mention that the 2019 is not a stealth although I'm inferring it from follow up posts. You also don't state how many miles each car has, or whether either car is being sold as new and therefore eligible for federal and CA tax credits.
Black vs blue is just personal preference. It seems silly to tell you what we think because it's not our car. Stealth is obviously better than AWD but without knowing miles, new/used, and price it's hard to comment.
And for the people telling you to buy 18" wheels, are you suggesting the OP sell the 19" wheels that come with the car and buy a set of 18's? That seems kind of silly. I like the 18" wheels better but if I was buying a car with 19's installed I would just leave them as is and maybe consider swapping when it's time to replace them.