Which are the competing players in the legal market? How are they positioned to advise you best?
The legal industry is a very fragmented market, compared to other professional services. Which firms are likely to deliver the best legal advice depends very much on the practice area and jurisdiction for which you are seeking legal advice. There are many rankings of law firms claiming to list the best/leading/most prominent firms in the market; we recommend referencing law firm guides that are based on client and/or peer reviews.
For international law firm rankings, the directories Legal 500 and Chambers and Partners are often referenced.