Amsoil 5w30 is my top choice. I've been running it for 15K with no problems. I also use their filter.
AMSOIL - 100% Synthetic 5W-30 Motor Oil (ASL)
Before this thread gets out of hand, I'll be the first to tell you, it's mostly preference. All synthetics do a good job. You will also have some saying regular oil is just as good, just change it at 3K etc.
I like doing my oil changes every 10K+ miles. Life is easier.