Which is the better book on Spitfires versus the V-2 sites?

[Procopius]

There appear to be two books out right now on the Spitfire dive-bombing offensive against V-2 rockets. I'm trying to figure out which one is right for me (as the kids say) and I was hoping that anyone who's read either or both of them would be willing to weigh in on what they thought of 'em.

 

Spitfire Dive Bombers versus the V-2, by Bill Simpson, which is 258 pages

 

or 

 

Operation Big Ben, by Craig Cabell, which is rather shorter at 176 pages. 

 

If anyone has any input, I'd be ever so grateful. Thanks!