"Pick between organic or synthetic, get the right weight, and then buy whatever's on sale at your local auto parts store."
This is very sound advice, assuming we have already settled questions like detergent/non-detergent, high mileage oils, diesel oils, etc. For some it is too easy to grab a bottle of Rotella, not knowing it's designed for diesels. Although it would not make your car blow up.
Otherwise a good article for the masses.
1995 Corvette base LT1 6-speed
2006 Tacoma 2.7 2wd access cab