Of those, I trust Lee the most.
I like Keaschell, it's all about what position he ends up at. I think he's the kind of guy that is a great 4th OF and possible sub at second or first. But I'm only mildly confident. But it's early.
Lewis? It's no secret I'm not a big fan. I have no idea who he is. Obviously, if he's the guy he's been since his return, he's a fine first baseman. But I have real doubts he can stay healthy, let alone productive. All that typed, I think he ends up a slightly above average hitter as a first baseman. But he's gone in two years? Or is it three?