Robert Pattinson, Jimmy Fallon

Ever wonder what would happen if Breaking Dawn Part 2, the final chapter in the Twilight saga, were recast with dogs? Or how to get a gigantic St. Bernard down from an attic when he's too frightened to step on a ladder? Our favorite online videos this week include answers to those questions, as well as kittens watching tennis, Long Island residents using "Gangnam Style" to lament the fact that they're still without power after Hurricane Sandy, and a brilliantly-edited version of President Obama covering "U Can't Touch This."

Which of the clips below is your favorite? And which awesome videos did we miss this week?

Top Videos of the Week: Karl Rove's avalanche and voting puppies

Barking Dawg Paw 2: The trailer for the final Twilight film, Breaking Dawn Part 2, is recreated shot for shot — only with dogs instead of humans. Are we the only ones who prefer Bella the pug to Kristen Stewart? It's those soulful eyes! 

Jimmy Fallon and Robert Pattinson Play "Water War": Why is it so funny watching these two play a trivia game that involves throwing water on each other after a wrong answer? We honestly can't tell you. It just is. 

Fraidy St. Bernard: What goes up must come down! A Polish St. Bernard learned that lesson the hard way, after climbing up a ladder into an attic and then being too skittish to come back down. After several failed attempts to coax the giant dog down, the owner is forced to — literally — take matters into his own hands. 

"It's Thanksgiving": We know, we know. We're a week early with this one. But that just gives you seven extra days to enjoy(?) this truly horrible video from the latest tweener flash-in-the-pan, Nicole Westbrook, singing about her love of all things Turkey Day. Is she the new Rebecca Black? Let's hope not. 

Gay Men Will Marry Your Girlfriends: Listen up, straights! In this short from College Humor, a handful of gay guys make the most compelling argument in favor of same-sex marriage yet: If they can't marry each other, gay guys will start marrying your girlfriend. (Warning: NSFW due to language.) 

Kittens Are Mesmerized by Tennis Match: These two adorable kittens are absolutely transfixed by a tennis match. But we can't tell if they're more intrigued by the back-and-forth motion of the ball or by the excessive grunting. 

Supercut: (S)He's Behind Me, Isn't (S)He?: That awkward moment when you've just said something horrible about a person, thinking they're out of earshot, only to find out they're just a foot or so away. Here's a best of the best mashup, from TV and movies. 

"Gangnam Style" Takes Long Island: Yes, the 15 minutes of Psy's K-pop juggernaut probably expired a while ago, but the past two weeks have been an exercise in patience for many Long Island residents — believe it or not, some have not yet regained power after Hurricane Sandy, which was more than two weeks ago. What better way to express frustration than parodying "Gangnam Style" as a plea to the Long Island Power Authority? 

M.C. Obama: In honor of President Obama's re-election last week, behold this dubbed version of our commander-in-chief's rendition of M.C. Hammer's "U Can't Touch This." (Also check out the president taking on everyone from Katy Perry to Justin Bieber, courtesy of the YouTube channel BaracksDubs.)