here's one: battle royal between Xeanhort from KH, Kefka Palazzo form FF VI, Sauron from LOTR and Makuta Teridax from Bionicle G1; all of them at their most powerful capabilities.
I feel like Kefka'd be removed first then Xeanhort. Makuta and Sauron would be close and honestly, I feel that Teridax is much more clever; he was able to think up of a several hundred different ways to continue his schemes and named a specific number that would "hurt" in a matter of moments! Sauron's clever but I feel he telegraphs his schemes to obviously and that can cause some issue. let me know your thoughts on this encounter.