I can't say that I've ever seriously tried to do the Stranglethorn Fishing Extravaganza -- I've seen it happen a few times, and I love the idea, but I've never committed to fishing long enough to be competitive in it. But I'm reconsidering that after reading these extremely fun tips from Resto4Life. Some of them are Druid specific (I bet the Shaman waterwalking spell would come in handy when trying to cross over to islands and through streams), and some of them are just silly, but it's just the right kind of thing to get you in the mindset to do a little Sunday angling. The two sources Resto pulled from have more: Tree of Life has a few helpful tips, while The Game Dame goes in-depth in laying out exactly how to win the event.
And it's a good thing we've got these, too -- as of patch 2.4, as the anglers among you have already heard, there'll be a few new fishing daily quests, and some brand new rewards (the fishing hat is now blue) from both the quests and the Extravaganza.
I still don't know if I have the interest to sit there, rod in hand, waiting for a fish to bite, but there's no doubt that this is a fun little, often missed part of the game. Very nice to have something fun like this going on weekly on the servers.