Best banking stock? JPM, BAC, MS, etc?

I'm thinking of adding some financials to my portfolio.

I really only want maybe one.

Do I really even NEED a financial stock?

I mean Cramer is saying “it's time to buy the banks!”

Is there a catalyst for banks now?

Out of the big ones which one do you think is good for long term?

Is it too late to start a small position right now?

I realized they've run up a little the past couple weeks.

I'm thinking of maybe just JPM or BAC or maybe MS?

I just want a small position like 2% and then I'll average down.