Ipad 4 is great however myself went for tf300 and havent looked back. All the storage and also has SD card slots. THe keyboard contains a battery which more than doubles battery life when docked. Price wise its also a lot less than IPAD.
Apps wise havent yet come across anything I could not find from Itunes and it works well and quick.
IF you have budget go for IPAD but otherwise cant go wrong with TF300
On side of nexus this on today register website http://www.theregister.co.uk/2012/12...for_christmas/