Hi Jordan,
Here is my reply...
1: Is there any numerical data to show that the aruba central has a better management system than the mobility controller?
In brief, Aruba Central is a cloud management platform that simplifies deployment and management for WLAN, LAN, VPN and SD-WAN across multiple sites from a unified dashboard. Aruba 7005 is the smallest controller from Aruba that can support 16 APs. Check this link for more details about Central https://www.arubanetworks.com/assets/ds/DS_ArubaCentral.pdf
2: how to address the security issue of the cloud management platform?Is there any special/unique technique on the aruba cloud management platform?
All communication between managed devices and Central is encrypted. We leverage the TPM chips available in our products to ensure secured communication using https.
You might want to check this post for further details https://blogs.arubanetworks.com/solutions/addressing-cloud-security-challenges-in-aruba-central-secure-by-design/
3:How does the aruba central integrate with clearpass ? is there any real life example and scenarios
Aruba Central doesn't integrate with ClearPass directly. From Aruba Central, you can configure your access points, gateways, switches to integrate with ClearPass.
4: Is there any reason why i should choose aruba central over mobility controller? any real life example and scenarios can share ?
Please share your requirements to help you further...