There are many different certifications accepted in the banking world and which one you get often depends on what you want to do.
If you want to get a job where you are offering financial advice to others (broker, financial advisor, investment executive), then the CFP is good - but the CFA is much better. The CFA is also much more difficult to obtain (three exams - all brutal).
If you're interested in finance or accounting, then the CA, CGA or CMA is the way to go.
If you want to work in Wealth (or in any role involving stocks, bonds, etc.), then the CSC is a good starting place. The Canadian Securities Institute offers many other courses in addition to the CSC that build on this knowledge. Obtaining the CSC is much easier than obtaining the other certifications listed above.
Depending on what you plan to do in banking, a completely different certification may be more appropriate in the end (e.g. PMP for project management, HR certification for HR staff, Insurance certifications, etc.).
In short, there are many different directions you can go in depending on what you want to do.