One improvement I would suggest for Oracle Eloqua is establishing data modeling capabilities where you can link various custom data objects to create multiple tables together, allowing access to data through SQL queries for better manipulation. I've found that when you get into very granular data analysis or complex segmentation, the current filter-based approach can become cumbersome. The filter wizard can only handle a certain number of conditions at a time, which can force you to build multiple 'shared filters' and combine them. An integrated SQL editor, or a more flexible data query tool, would allow for more efficient and sophisticated data manipulation
