It may depend on what is available locally. Optimal has the advantage you can easily order it by mail and have delivered to your doorstep.
In my case up until last year if I wanted anything other than the lower protein stuff sold in places like Tractor Supply I had to order it way ahead of time and the reliability of supply was questionable. That has changed more recently with a local feed store stocking Purena Aquamax MVP. Now I feed MVP for my bulk feed but I find the Optimal is handy for any specialty feed I might want such as starter or bass feed, because I can order it easily in smaller amounts.
