Start with a few brands. Sell off what you don't like and buy more of the ones you like. Different people like different diapers for all kinds of reasons. In fact, I like a lot of different diapers just based on what mood I'm in and how it fits O at the time. I can't even say what my favorite diaper is really, and we have tried probably close to 15 brands.
Diaper trials are really helpful if you are new to CD. You can read up all you want, you won't know what works best on your LO until you try for yourself.
Re: What kind of cloth diapers to choose?