Eh. That's what the Void is for, right?
Jerry C over at ESPN breaks down some of the availables, and once again mentions the Astros with regard to Hernandez and Benson. The point is made that Benson's infamous 70 mph workout was not at full health or effort.
If he's healthier than that workout implied, then Benson's ceiling could be higher than Hernandez's in terms of effectiveness. But in terms of IP and durability, I'd take Hernandez every day and twice on Sundays.
Well if you are talking about ceilings, than I think it a no brainer that Benson's ceiling is higher than Hernandez. But the fact that it is alot more iffy because while Hernandez is getting old (and fat), he is not coming back from an injury. Any time a player is coming back from injury there is a high risk attached. Sometimes it pays off, most times it doesn't.
As for Benson's workout, I think while he was not at full health, I would imagine he was giving full effort. This was his one major demonstration to teams that he was worth signing and taking on the risk as he comes back from injury. The better he does during it, the better his options are both with choice of teams and contracts. So while he wasn't able to show he was fully healthy and do all that you would want a pitcher to be able to do, I doubt his effort was not 100%. If it were (or that was the perception) it would torpedo any offer he might get because who wants a guy coming back from serious surgery who isn't giving full effort? See my point?
At this point in the whole "who is going to start for the Astros" debate, I am now leaning toward the "they are not going to add anyone else" side than any other. This is all in respect to when they open Spring Training.