Which one is more secure and why?
For online one, there is concern about whether your password is encrypted locally or not or can Uncle Tom or whatever get an access to it, if needed. Above all do you feel secure saving your password online?
For desktop managers, a trojan, or a virus can take all your password.
Would you prefer an old type chit keeping, where you write down all you passwords in a small paper flash card or small dairy and keep it in your wallet!
This question is inspired by this question.