i think it depends on how light or heavy your gear is, the drag strength on your reel, and the line you use.
going ultra-light will usually mean shorter, maybe 5 ft rod, smaller reel, 5 lb test will give you a good, long, more difficult fight
going heavy with usually longer, maybe 7-8 ft heavy action rods, with like 65 lb test will make things easy, and shorter, like for fishing in lots of vegetation