Annie Duke vs. Joan Rivers Celebrity Apprentice Showdown

It's being billed as the "Reality Television Battle of the Century" - Well, at least Gambling911.com is calling it that.  But when you really get down to it, the bitter feud between comedian Joan Rivers and poker player Annie Duke on NBC's Celebrity Apprentice is essentially just that - an epic battle, and it's difficult to think of a more tense relationship in this history of reality TV - outside of maybe a few MTV Real World episodes and that Temptation Island show that aired on Fox a few years back.  Both women will go up against each other in the three hour Celebrity Apprentice finale Sunday night.

Rivers and her beloved daughter, Melissa, have called Annie everything in the book from "Hitler" to a "Whore Pit Viper".

Melissa Rivers finally explained the terminology of "Whore Pit Viper" on the Ellen Degeneres Show this week.

"It was meant to be ‘Whore - Period - Pit Vipers'," she said, explaining that the words all came out to form one single word.  She shouted the remarks after being fired by Donald Trump two weeks prior to the finale.

Both Duke and Rivers have been making the rounds of daytime television the past few days and now the two women are presumably preparing for their Celebrity Apprentice showdown, in between taking jabs at one another..

"We are booked in room 666 no kidding! Joan Rivers is saying I told you so right now," Duke announced on her Twitter page.

Rivers has been venomous towards Duke much of the week on her Twitter page and on television appearances.

"Apparently in Philly Ann-Me (a reference to Annie Duke always talking about herself on the show) spent a third of her lecture say how much she hates me. Nice for the folks who spent $$$$ to hear her speak!!"

8.7 million people watched the show last Sunday.

The fun starts at 8 pm EST on NBC Sunday night. 

Annie Duke is a spokesperson for the online poker room www.ultimatebet.com

Jordan Bach, Gambling911.com