Who do you think is the best swordfighter? Who has the most skill? Who has the most strength? Who has the most speed? Who is the best of all the SWORDFIGHTERS in redwall? This only includes beasts we have seen use a sword and use it skillfully. Just hearing how great they were like Raga Bol doesn't count. This can be good or evil.
For overall skill, got to go with Buckler and Rake Nightfur - hares being properly trained and all that.
If I remember correctly in the Legend of Luke, Martin and Gonf put on a sword skill show. Worth an honorable mention