I don't think you won't go too far wrong either way. I don't own either but have been thinking about upgrading to either the Air or 11" Pro. My take is that any differences in processor speed is probably moot for the vast majority of users. I'm using a 9.7" Pro with some A9 variant and don't really notice much lag. Now, I'm not playing games or doing intense video editing. My take is that if 64gb is sufficient, the Air is an easy choice unless you need the other features of the Pro. On the other hand, if you feel 64gb is not sufficient but 128gb is, then I think the Pro motion, better speakers, etc. in the Pro make it preferable.