Mench. Hidalgo won't hit for a good BA, Mench will. Other than that they're about equal. If it's for a reserve spot, or if he's going to be your 5th OF, then taking a chance on Hidalgo returning to 2000 form isn't a bad idea. But most likely Mench will have a better year.
"Jack, will you call me, if you're able?"
"I've got your phone number written, in the back of my Bible."