Welcome to Flyertalk to both of you.

It depends on your requirements and price point. I'm a big Briggs & Riley fan, as are many others here but they are more expensive. There is a thread on brands with lifetime, unconditional warranties that might be of interest to you if warranties are important (Briggs & Riley is one that has such a warranty). Others prefer cheaper, more or less disposable bags that they replace every few years. So a lot depends on preference. A little more information on what you are looking for and your preferences (price range, size requirements, wheels or no wheels) would help people offer more detailed, responsive comments.