I use both, but prefer baitcasters. I mostly large mouth bass fish. As I have progressed, I lean more towards a rod that is at least 7' long and medium heavy, and a baitcaster is the way to go on that size and strength rod. Of course you cannot expect to throw a beetle spin on that setup, but also have a 5'6" ultra light spinning reel combo for small stuff. Those two would be my two of choice if I could only bring two combos. For me, outside of the really small light stuff, a baitcaster combo can be had to cover it all. I also have a baitcaster designed to throw lighter baits paired to a 7' medium light rod that can throw a lot of stuff most guys prefer a spinning combo. The biggest reason I prefer baitcasters is the ability to throw to cover and the shore and "feather" the spool to drop the lure exactly where I want it. That is very tricky on a spinning reel, although if close enough I can pitch with both equally effectively. Also, with baitcasters there seems to be a wider range of good and bad reels. To me (and maybe I just do not have any high enough end spinning reels), they all feel about the same, as long as the drag is adjustable enough, and the bail functions smoothly, who cares. With baitcasters, you have drag, spool tension, bearings and how smooth the reel is, casting distance, brake systems, and other details that separate a $60 reel from a $200 reel, and you will know the difference between the two. Good luck, and do not give up on baitcasters if you have some problems early on, it is worth it.