The question here is “How to select the right investment banker for your business?”
The "Companion" banker
Relationships are built on trust, and an association with an investment banker is no exception. You have a considerable measure riding on the outcome of this relationship, so when screening potential investment bankers you have to consider the applicant's likeability, communication style, and trustworthiness. If you don't bond with an investment banker amid the initial interview, keep looking.
Experience
There is no substitute for experience in
Motive
If you are looking for the highest valuation from any funding source, you need a banker that is aggressive at getting the opportunity priced up. If you are more concerned about finding the right partner with the right fit, be cautious at picking a banker that is incentivised to discover who will come in at the highest price. Sifting through this information might be difficult and require being a good judge of character, or having external references to go down your choice in banker. You'll generally need to intimately know your own particular business goals so you can make sure your banker has the same.
In the end, your business is just worth as much as somebody is willing to pay for it. Be that as it may, a good banker should know enough about industry trends, current market movement, average multiples, and other valuation factors to give you a ballpark figure of what your company is worth.