I picked up a bottle of Two Crabs brand the other day because I needed some for a recipe and the only store I had time to get to had it. Actually they had two brands, One Crab and Two Crab, and I arbitrarily chose the Two Crab (two is better than one, right?).
The dish I was making, a Thai marinated grilled chicken, tasted fine, but I'm not very experienced with fish sauce and am wondering whether it's worth trying to find a better one. I googled it and found that there is apparently a very popular brand called Three Crabs so I'm wondering whether the One Crab and Two Crab brands are inferior knockoffs trying to capitalize on the popularity of Three, or just other decent brands.
Can a fish sauce expert give me some advice on the subject?