I'd rank (or should I say r.a.p.?
Walker over Rivas based on potential impact this season.
Gibbons vs. Kearns is tough. Kearns has far more potential, but with elbow surgery looming, he's less of a sure thing. If Gibbons qualifies at 1b, he might actually be the better call.
Foulke over Urbina, but not by as much as you might think.
Lilly over Lewis.
And yes, I'd much rather have Oswalt than Miller.