The mailing compare report provides the ability to compare the performance of sent emails in one view. This report includes customization capabilities where you may choose which fields of additional metrics to include on the report and create/save report templates.
This report is located in Analytics > Campaigns (left-hand navigation) > Mailing Compare Report.
TIPS & TRICKS
1. Customize the statistics included in your view. Click the drop-down on the Select Mailings button and select Choose Fields. A pop-up will to chose what to see or remove from the report view.
2. Compare Report Groups. Click the "Select Mailings" button and then "Report Groups" on left navigation to chose multiple report groups to compare.