To be real honest... It is goig to be application specific, and determined by the angler as to which type would fill the bill... But I use a spinning set-up for drift fishing smaller streams, and creeks. Primarily because I can laser cast two small split shot, 60 feet with one. I use a casting unit on bigger rivers, like the Clackamas, Sandy or Santiam, where I don't have to worry much about snipe casting between bushes. With the casting reel, you will probably need to use a hair more weight than you do with the spinning reel to start off. And having your drag, brake, and magnetic brake set properly is impereitive for accurate, mess-free casting. I like to have a casting set-up for the largeer rivers too, because they generally have a bit more drag force. Meaning you can drop your rod tip to the side, and really give those steelhead a good pull out of the current. But having a casting rig in your arsenal ca nbe very beneficial for a lot of anglers, but don't go overboard too quick with one. Get something that suits your budget, and get used to casting it around the yard, or wherever you please. But practice makes perfect with everything. Good luck finding something for your needs.