I’m a week late in posting this, and for that I apologize.
At this year’s International Christian Retail Show, Christian Retailing Magazine announced the winners of the 2009 Retailers Choice Awards. Alongside notable winners such as Crazy Love by Francis Chan (Best Christian Living book) and Nooma 019: Open featuring Rob Bell (best DVD/Video), was the winner in the Accessories/Apparel category: the Stick With Jesus T-shirt (pictured below).

The shirt is available from Kerusso here, and it’s worth noting that Kerusso took home the same award last year thanks to their Easy Button/Jesus Button shirt. So there you have it — the best Christian T-shirt of the year!
