Sizmek is my favorite
- Smart Planning - this is the tool that provides a process for RFPs, Proposals, and Final IO issuance. This tool was great not only to facilitate these processes, but housed all of these documents on a platform that anyone can view at a later date, prevented errors, and cut time in evaluation and implementation
- Reporting - the reporting interface is very user friendly and can pull whatever you need. The export is easily made into a pivot as opposed to being formatted, and made our analytics timeline more client-appeasing
- Support - the Sizmek support team is AMAZING! Very responsive, helpful, and timely.
Cons
- Making changes to existing/live placements can be difficult, but I don't think this can be avoided in any ad server
- Process efficiency
- Reporting capabilities
- Customer service
- dcm, adswerve and dfa