AFE has bigger diagrams, slightly more airfields, and costs a little less.
Pooleys fits perfectly in my kneeboard, rarely doesn't have anywhere I want to visit, has lots of other information that occasionally comes in handy.
The clincher is that Bob Pooley is a friend, so he gets my custom; also I'm used to it - but to be honest they're as good as each other.
The best laid out in my opinion is the RAF "Minor Airfields Guide", but it covers a very limited range of airfields.
G