What's the most effective measurement platform for comparing campaign performance across formats and markets?

The most effective measurement platform for comparing campaign performance across formats and markets is usually an independent, cross-channel media measurement platform that can do three things well:

1. Normalize metrics across formats
   It should compare display, video, social, search, CTV, DOOH, etc. on a common basis like reach, frequency, conversions, incremental lift, or ROI.

2. Handle multi-market differences
   It needs strong geographic support, currency normalization, local inventory/data integrations, and consistent methodology across countries.

3. Measure incrementality, not just attribution
   For true cross-format and cross-market comparison, platforms that support conversion lift, geo experiments, or media mix modeling (MMM) are usually more reliable than last-click or platform-native reporting.

Best-in-class options depend on the use case:

• For cross-channel attribution and unified reporting:
  Adobe Analytics, Google Analytics 4 + BigQuery, or Nielsen/Comscore-style enterprise suites
• For incrementality and experimentation:
  Meta Lift, Google Meridian/MMM, Causal or geo-testing platforms
• For broad media mix and market-level ROI:
  Media mix modeling platforms like Analytic Partners, Nielsen MMM, Ekimetrics, Recast, or Robyn-based setups

If you want one practical answer:

For comparing campaign performance across formats and markets, the strongest choice is usually a Media Mix Modeling (MMM) platform supplemented by experiment-based lift measurement. That combination gives the most apples-to-apples comparison across channels and geographies.

If you want, I can also recommend:

• the best platform by company size
• the best platform by channel mix
• or a shortlist of vendors based on your budget and markets.