Just read this thread, I think from just the ingredients and protein/fat percentages I would say that you wouldn't go wrong with either brand... I don't put much stock in "observation" studies to compare feed, there are too many variables.
As far as I know there are no controlled studies to compare the two brands head to head so since I can get MVP for about $1 a pound vs. $1.50 a pound for optimal I'll feed the MVP.
I also like the fact that there are different sizes and some sinkers in the MVP. I've notice more smaller BG feeding on the MVP vs the 500 I was feeding previously.
That's not saying that if I see some independent data that clearly shows a difference, that I would not change, I have not brand preference either way.
While we're at it, which is better Chevy or Ford???
