Personally;I am a huge fan of the synthetics. Not all are worth the money, but the good ones uihave their advantages.

I know there is always the story of the guy who uses the generic oil and filter and the motor lasts forever, but most of the time when I have dealt with oils or greases that aren't geared for hi-performance or racing applications I have seen unusual wear or premature failures.

To be fair, there are plenty of quality non-synthetics as well.

Like Bob said, research it and find what is best for you.