Jeez, this thread has not got very far - there's only a couple o' guys here trying to back up their arguments. I think it's very difficult to argue that the Mosquito truly rivalled the Lightning in a pure day-fighter role (not as a daylight intruder which some count as being a 'fighter'). Likewise it is next to impossible to argue the P-38's case when it comes to bombing.
For nightfighting the Mosquito's phenomenal
actual war record has to overcome the 'promising' nature of late war Night-fighter Lightnings. Likewise I believe the Mosquito just about pips the P-38 to the post for photo-recce (about the only area where the two are
very closely comparable, apart from durability and strike capability [rockets/ Molins cannon etc]). From there on the Mosquito wins hands down because the P-38 was
not carrier-capable, was
never successfully used as a high-speed transport, and was found to be surplus to requirements long before the Mossie bowed out in 1954 (I think - I'll go check).
Overall, I believe that, although the P-38 was an outstanding plane, the Mosquito was the more versatile and overall more capable aircraft (as well as being Goring's personal least favourite plane).
If anyone has any real arguments against these points,
please post them - I'm tired and may well have erred.
