Question :
Can you direct Availability Groups to fail over to a specific node in the cluster?
Answer :
Windows Server Failover Clustering (WSFC) with SQL Server does have the option to failover to a particular node and Availability Groups seem to build on WSFC.
Taken form the MSDN:
Preferred owner
A node on which a resource group prefers to run.
Each resource group is associated with a list of preferred owners
sorted in order of preference. During automatic failover, the resource
group is moved to the next preferred node in the preferred owner list.
For alwayson availability groups, you can’t do that.
After a failover SQL server will revert these settings to the current primary node.
So it won’t work.