Best tanning oil? Banana boat? ?

I'm going to be outside for long hours in 70-90 (varies everyday) degree weather, for three days. While I'm outside I'm trying to catch a nice tan. I heard tanning oil helps especially since I do not sun burn easily—I've burned like twice in my whole entire life. Someone recommend Banana Boat oil? Is that good? What's the best/cheapest you have used?