From today's Philippines - Spirits decision:
119. While in the determination of "likeness" a panel may logically start from the physical characteristics of the products, none of the criteria that a panel considers necessarily has an overarching role in the determination of "likeness" under Article III:2 of the GATT 1994. A panel examines these criteria in order to make a determination about the nature and extent of a competitive relationship between and among the products.
120. We understand that products that have very similar physical characteristics may not be "like", within the meaning of Article III:2, if their competitiveness or substitutability is low, while products that present certain physical differences may still be considered "like" if such physical differences have a limited impact on the competitive relationship between and among the products.
Nothing too shocking here. Just a reminder that competitiveness is the key to the "likeness" analysis, even under Article III:2, first sentence.