Wow - thanks Alex for posting such a great list - I'll be looking it over for a while! Really great to have info on growth habits, disease trends and flavor all in one spot!
Chad, I highly recommend spending this season tasting all the mangos you think you might want to help you narrow it down! When I was deciding what varieties to graft to a tree I topworked I ordered multi-variety boxes from Alex with one or two of each variety I thought I might like. I chose what to order based on growth habit (I'm a zone pusher, so only smaller trees). Then the taste testing really helped me pick which to try grafting. Also, even if you plan to keep the tree as a single variety, I recommend grafting a couple varieties to see what takes. I'm kind of a novice grafter (I've top worked 2 trees) and have found that some varieties are easier to get to "take" than others. I've had two tries at grafting honeykiss and both times, all grafts failed. But other varieties like fairchild "took" easily. So I partly let the grafting lottery determine what variety my tree is now=)