[macpappy]

You can use both. Baitcasting is better suited for most fishing though. That being said I still find situation where a good Spinning reel is better and easier to use than a baitcaster. For example I find spinning easier when its windy but that could just be me. I also like spinning rigs if I am fishing ultralight or for something like crappie/perch.

And, if you have a good spinning rig you can catch anything you want. I've caught speckled trout, flounder and reds consistently without problems with a spinning reel and I know some saltwater charter captains that only carry spinning reels on their boats.