Not Leo, but a long time user of 1Password, and casual user of Lastpass. My personal bias towards 1Password is very specifically focused on security of my passwords. I prefer not to have my most important info stored on a commercially controlled server, accessible by a public webpage.
I choose 1Password because it very specifically provides a way to sync your info between devices without ever touching the internet. You can store encrypted backups on several cloud services like iCloud and Dropbox, or you can keep them totally off the internet. And, to my knowledge, there is no web based access to your information stored within you 1Password vault.
Lastpass is very much tied up to their server. It provides web based access to one’s passwords from anywhere. You can log in from a browser, and see your passwords. They also provide apps to keep all your stuff on your device. All that is great, but when helping a friends widow after his death, I saw it would be much was too easy and convenient for someone to get to the account if there was a security breach at Lastpass.
But after all that, when asked by friends how to keep their passwords safe and available, I recommend Lastpass.