The best built 0w20 IMO is Red Line's formula, I'd love to run it but since it is not API certified Honda could void my warranty and I have an extended warranty that I'd like to keep in place. I will have Honda do my oil changes but I may supply the oil to the dealer.
Hanging out at bobistheoilguy.com the Pennzoil sponsors are offering me enough oil for two full oil changes, plus used oil analysis testing kits , all for free, and they are supply Pennzoil Ultra which is their top notch synthetic oil. I'm going to run it on two oil change intervals after the factory fill is drained, depending on the test results I may keep running the Pennz. Ultra. My other choice would be Amsoil Signature Series 0w-20. All great oils.