This is a topic that, surprisingly, hasn't been mentioned, or at least I've never seen it before. No flaming if it has been.
However, I digress, there is a need for this topic, and I feel that Crono is the better of the two. I feel this way because Crono's Lumanaire is not only obviously more potent than Serge's, but even stronger than Serge's final Tech. While I know that either game operates on a different scale of damage, I feel that Crono was more potent. Also, the Rainbow, with its near guaranteed critical hit, is one of the best weapons in RPG history, even though I feel that the fully charged Masamune, invigorated with not only Masa and Mune's true power, but also with the hopes and dreams of Cyrus, should have been stronger...
Any thoughts???