At this stage in Oil history, I think all major brands are about equal.I guess it'* just what floats your boat. I use Castrol Syntec just because I believe their deep involvement in auto/ drag racing may give they have a little edge on newest technology.... But doubt their is really much difference in the major brands.
As Will W mentioned before Many cars here reach towards 300k on dino oil. I ran an 85 Olds to 237k on dino and it went to the boneyard running great. It was just "dated" , with the other parts of the drive train falling apart, and started to look butt ugly compared to newer models.