Welcome to FT!
What you should first do is read through the stickies that are at the top of this and other message boards. Most of them will guide you to either informational FT threads, or directly to resource pages set up by specific airlines.
Additionally, if you're looking for advice from the FT membership, you should let all of us know where you'll be traveling from most often and where you typically go (this helps everyone get a sense for which airline would provide you the best service option).
So, do some reading, and if your questions still persist come back to either this forum or the TravelBuzz forum.