If Lucas is free then I may use it, I refuse to pay even 1 penny for any Lucas product.
Which defines "Best Value" ? The one you pay less upfront but change more often or the one you pay more but change less ? How about someone take their vehicle to garage or dealer for maintenance, do you account labor cost ? How about higher upfront cost but extend the life of the critical part(s) by several years and thousands of miles ?
For a long interval such as transmission fluid and gear fluid I rather pay more upfront cost and change it less often, Amsoil SVG is an excellent choice.