Is it better to be in a car that is more likely to save your life and burst into flames in an accident or or one that has lower safety ratings and lower likelihood of catching fire?
I'd say it's better to be in a car that is more likely to save your life (e.g. a Model S), and is also less likely to burst into flames in an accident (e.g. any electric vehicle on the market).
In a major accident, gasoline cars are still statistically much more likely to catch fire than EVs, which is exactly why it doesn't make the news when a gas car catches fire.