Mets infielder Wilmer Flores will hit for average in the majors. Of this, I'm fairly certain. He has made consistent contact throughout his minor-league career, and it's not like he's just slapping at the ball. How much power he'll provide, though, particularly at age 22, remains to be seen.
Granted, his 15 homers and 35 doubles so far at Triple-A are nothing to sneeze at, but he's playing in the hitter-friendly Pacific Coast League -- and at Las Vegas, no less. Any prospect worth his salt should put up those kinds of numbers there.
But again, he's not slapping at the ball. I'm not saying Flores is destined to become another Placido Polanco or anything. But if he does come up to fill in for an injured David Wright at third base, as speculated, you might want to give him a chance to show what he can do before claiming him off the waiver wire. Though a definite prospect, he's not on the level of, say, Christian Yelich, so I don't anticipate a mad rush to pick him up.
In the long run, I think he's a better Fantasy contributor than Cody Asche, if that gives you some perspective.