Not a lot between the 2007 and 2008 years.
This is one player who attracted a lot of opposition focus IMO due to the fact he was our first young attacking midfielders to break out. With Lids, Cotch, Cuz and White all on the scene, Axel will benefit big time from reduced focus and should be able to reproduce his 2007 form.
Certainly looks the goods in the couple of games he's played this season.