Separating emotions from investment decisions has been cited by investment hall-of-famers as a determining factor for investment returns. Investors feeling the pain of watching their holdings in financials like Bank of America (NYSE:BAC), Goldman Sachs (NYSE:GS) and Citigroup (NYSE:C) fall more than 60% since the beginning of 2008 through the beginning of December may be considering their options at the start of this year. Let's take a look at a couple of factors to consider when making the decision to hold for the future or to sell and take losses. (For more on how to succeed during times of financial crisis, take a look at our Financial Crisis Survival Guide.)