What's the best CPU benchmarking program?

Benchmarking is when you attempt to measure real-world performance. Obviously the best benchmark then, would be a real program. If you're just looking for bragging rights, PCMark will do. But then again, it's just bragging rights. Doing better in PCMark won't neccessarily mean you're processor is faster in everything, it just means it's faster in PCMark. If you want to know how fast a processor is (relative to another) in say, games, you'd have to benchmark games.

"We are Microsoft, resistance is futile." - Bill Gates, 2015.