As I said, i'm pretty sure both stores get their supplies from the same distributor; so if the first batch they receive is big enough to cover all the backorders, you should get your order at the same time as I did. Mine is placed for a long time so i'm pretty sure my order is in the next batch to be shipped.
B&H delivery is very fast and painless. You pay for shipping and taxes at the moment of the order. And 2-3 days later, your box is at the door. Doing that way tells the customs: "Hey, we did our homework and the package is clear to go". So they dont have to delay the delivery for verification or to calculate the duty/import fees. I received my TC yesterday morning and ordered it friday after business hours. Which is pretty good.
I love it, but my wallet doesnt! I heard that Adorama is a very good store also, but never had the chance to deal with them.