Take it from a guy in St. Louis, Drew isn't injury prone, he's a wuss (restraining myself from using stronger language beginning with a p).
That being said, I have to disagree that Kearns has more talent. If Drew ever played a full year, he would put up monster numbers. But whether Cox can get him to suck it up when LaRussa couldn't is anybody's guess.
The safer pick is Kearns, but Drew has the higher upside.
It's time to roll the dice.