Kylie Jenner 's BFF Stassie Karanikolaou and influencer Victoria Villarroel -- Kylie's former personal assistant -- are both rockin' matching white robes with red trim, but which sexy star is grabbin' the win ... and whose laid back look is a bit too grim? The question here is: Who'd You Rather?! VOTE NOW! Chrishell Stause just took some nasty jabs at Katharine McPhee on the heels of her and husband David Foster endorsing Spencer Pratt for Los Angeles mayor ... but sources close to Katharine