brain - refers to an organ of a living things, specifically belonging to the fauna kingdom (animals kingdom)regardless of its classification..., and compose of left and right hemisphere.

brains - refers to the intellectual, wisdom, iq or other words synonymous.

Beauty or brains? logical answering it, it differs, defending on your major and minor premises.... for example:
1. beauty - major premises and brains - minor premises,
2. brains - major premises and beauty - minor premises.

Iin other words, all your answer is correct.