Oils are religions around here. I prefer older SL-rated oils like German Castrol because they still have lots of zinc (acts as a lubricant in metal-to-metal situations), though it will eventually foul cats (or so they say).
Get UOAs from Blackstone Labs and listen to what they say. Everyone here is a zealot for a particular oil or 2. In no particular order, you won't go wrong with:
Castrol Edge SPT 0W-30 (current branding of German Castrol, look for the "Made in Germany" on the back)
Rotella T6 5W40
Mobil 1 0W-40 European Formula
Never tried the Pennzoil so have no opinion, but many on BITOG seem to like it.