The Yellow Yelper calls are also an Arkansas product.You really have to try a bunch since there are many different sizes, the stiffness of the tape varies, etc... Wait til after season, go into Wal-Mart and you can buy all them you want to try for cheap.
That said, the 2 I used the most last year:
Knight Hale (Maroon Tape with a yellow reed)
Yellow Yelper double reed
I've never met the guy but his calls are sold locally and I usually buy at least one every year.Plus, the guy that makes them is a heck of a nice guy. That's probably 3/4 of the reason I still go the Big Buck Classic.