I have both, but totally different drillings. The AI is drilled with the Rico 1 layout, which is length, excellent midlane read and a very strong arcing move to the pocket with plenty continuation.
The S&A is drilled for a sharp break point, and believe me it is sharp, has good length with a ton of recovery. Gives me another 3-5 boards than the AI with more recovery than the AI.
I generally begin with the S&A, by the end of the 2nd game I'm getting out the AI, more controlable and predictible on the backend than the S&A's hard sharp turn.