they are the most tech advanced race cars in the world... the drivers are top notch. BUT.... tight racing is seldom, especially at the finish line. Most other type of racing will have good finished far more often.
I'd say Indy Car is my favorite... but the reason for that is mostly nostalgic. I grew up on the Indy 500. Next up I'd put The World Of Outlaws... pure adrenalin and excitement. Then NASCAR but very close with all the road racing cars, varies series. I think road racing could have become my favorite had there been any road course nearby. There weren't.
By far the races I've seen most in my life are Super Modified's but they got SO advanced, and powerful, no one could afford to build them and participants dwindled to a handful. To bring them back they started restricting them trying to hold down cost. Understandable and it worked somewhat. But here out west they haven't return to glory as yet. - JamesJM