Mobil 1 was probably my favorite before and after BITOG, especially the 0w-40 variety.
In my slight leaker car though, I've always used a variety of high mileage oils, before and after BITOG.
Truly, BITOG never really changed what oils I use. It did make me think more highly of Pennzoil labeled products, and I did learn about German Castrol, though the price kept me from ever trying it.