Ya' know, if you visit, ya know, the Merrimack Valley, area, of Massachusetts, ya know, you'll come away using ya know, nearly every other word, ya know. Whether, ya know, you're a kid or an adult, ya know!
As for the, like, West Coast, it's, like, nearly, like, ya know, every other, like, word! But, like, out West it's, like, mostly younger folks, like, who use the word "Like," like, for everthing!
My vote: "like" and "ya' know"