ERP reviews - NAV vs. Costpoint

My company is reviewing small-mid size business ERPs,
which are using MSSQL as their backend.
(government contracting vertical)

Currently it is on an older version of Costpoint,
considering whether it's worth upgrading to Costpoint 7

We're also considering a derivative of Microsoft Dynamics NAV 2013.


Any opinion on these platforms?
Any negatives?

Any alternatives you would suggest?