RE: The 3 best whitetail mixes?
I've only used prepared seeds a few times - The one I liked the best was Imperial Whitetail clover - The deer just love that Giant Ladino - if you can get the soil right.
I will say though that I preffer locally offered seed sources for Clovers - for cost and proven performance by local farmers. - Ask your local co-op what White clovers are best in your area - and cost effective - if you haven't yet done so - you might be surprised by the cost.