401k 比 IRA 更好， 见下文：

For example, California is a precarious state in which to own a retirement account if you are being sued or filing for bankruptcy. In California, IRAs are not as well protected as 401(k)s. What this means in practice is that if you are being sued for personal injury in California, your 401(k) will be protected from the prosecutor; however, your IRA will only be protected up to the point that the court deems necessary.