Regardless of whatever trading goals or styles you have, one thing remains constant: we all need a stock brokerage to do trade stocks.
Since it is relatively easy to transfer stock brokerages nowadays, it isn't that big of a deal to try to find the best one.
If you end up not liking it, then you can simply take your money and move elsewhere.
Most of the time your new stock brokerage will cover most if not all the transfer fees.
That being said, there are a few things you should consider to see if a stock brokerage is right for you: Commissions: Are you planning on trading long-term? How active do you want to be? Obviously short-term traders will prefer low commission stock trading because it cuts costs and increases profit.
On the other hand, if you are looking to to invest long-term, then perhaps you don't mind paying a little bit more commission for better tools.
Education and Support: How experienced at you with trading stocks? If you are a new stock trader, then you'll probably like brokerages that offer good support and ample of free education webinars and resources.
On the other hand, if you are comfortable with trading stocks, then perhaps you can give up support for cheaper commissions.
Overall, there really is no such thing as the "best brokerage" because it depends on the individual trader.
What may look good to somebody, might be irrelevant to somebody else.
The key is to find out what you need and what you can live without.