FortiSwitch vs Cisco at the Internet Edge

We are moving our datacenter to a CoLo facility and we will have FG 600Es at the edge and management wants to make the switches (Just for the edge, not the core) Cisco and the security group wants FortiSwitches. Does anyone have a gool listing of reasons to choose FG over Cisco? Environment is 1Gb Internet connection and a 10Gb hand off to the DC core switches (Cisco 9ks).

I have come up with this so far but I need more!