The debates will rage on, but the general opinion is that any modern, name brand works well. There are debates as to style, weight, +p or not, over penetration, under penetration, but everything aside, modern SD ammo technology is light years ahead of where it was. Find a round your gun likes, buy a case and don't look back. Reliability in YOUR gun is key. Personally, I carry Speer Gold Dot 124gr 9mm because it's a proven design with a medium bullet weight and all my 9mm's love them.
I would stay away from cutting edge technologies such as "RIP" ammo. They are answering a question that was never asked by experienced shooters and haven't had the best track record beyond advertising.