In Repeat Customer Insights I was asked:
What is the best report to determine most consistent highest spenders?
You'll want to use the Customer Segmenting reports for that. You can also use the Customer Grid as it's a visual view of the same data and will let you drill down into the details for each customer segment.
The highest spenders will have a high Monetary component from the RFM analysis. I'd recommend looking at these segments as they include other good behaviors in addition to a high total spend:
- Recent whale (RM)
- Recent high spender (RM)
- Whale (FM)
Those three segments should give you plenty of customers to plan a few marketing campaigns for.
If you haven't installed Repeat Customer Insights yet, it's an easy way to get a detailed look at your customer behavior.