I usually get the Pure Pastures meadow hay, which is the cheapest, and my bunnies like it. I also get the timothy hay from Alfalfa King company (all via the Hay Experts). In my last order I had a new type called Burns Organic mountain hay, and all my bunnies went crazy for it.
I got an e-mail from the Hay Experts that they won't be dispatching anything until Wednesday, as they are doing some works on their website or something like that.
So if you need the hay before the end of the week, I'd try and ask a friend to bring some for you.