I think you’d be blown away by how capable a bike the Scout is. If it’s one bike to do everything, for most riders, that would be the one.
The Patrol really comes into its own as an Enduro (sorry!) ride, or for Alps trips, or the gnarlier trail centres – but it’s too much bike for most of us, for our everyday riding. Great to have both, if you can afford/justify it and ride them each often enough! I’d not go for the Patrol as your one bike, unless your riding is significantly steeper/techier/faster than the average.
Both are very limited in availability (basically most shops, and the UK distributor, have none) until the new 2016 range comes in (limited quantities landing in September, then more in December). Both the Patrol and Scout are there in the 2016 range in new colours. The Scout has a couple of small tweaks.
We did get notification today that there is one large limeade Scout frame with cosmetic imperfections available, at 20% off.