Rent
Neck and neck
Las Vegas and Santa Ana are about even on rent.
Las Vegas
$2,150/mo
Santa Ana
$2,150/mo
What this means for your life
Typical rent in Las Vegas is $2,150 a month versus $2,150 in Santa Ana, close enough that housing cost should not decide the move by itself. Factor it into your budget alongside salary differences between the two markets, then pick the city that wins the categories you actually live in: safety, schools, pay, or weather.