Frankly, just pick one and don't look back
The feature set is actually quite similar (thank you to whomever posted the link earlier). Likewise, the pricing is also extremely close. I've been using 1 password for 5 years so far, and my cost is approximately the same as if had used LastPass premium for the same duration. Either path will be with you for decades.
I'm sure more people are also in agreement. Just use something. Unfortunately the days of having 4 or 5 passwords (one for logging to online banks, one for forums, one for "create an account to post a comment to this blog that you'll never come back to", etc) are long gone. You need unique random passwords on every site.
Both lastpass and 1password are excellent choices. Both services have demonstrated in the real world that security is very important to them. Lastpass forced all accounts to change their master password after
minor traffic anomaly which even they said later was a little overreacting (Although IMO I want a company that I'm trusting with all my passwords to be paranoid). Security researchers are constantly poking at both 1password and lastpass for any weakness and when found both have been very proactive in fixing it.
One thing I will caution you on, stick with a well known service/product like 1password, lastpass, keepass (granted that one doesn't have any built in syncing of the password db among computers). Those are all the common ones that have a lot of people looking at to make sure it's safe. Don't use some WeStoreYourPasswordsForFreeTrustUs.com site that no one has heard of, especially if they "designed their own encryption standard" instead of one of the existing well known ones. That's not to say there are several others that are perfectly fine, but I'd rather use something that I know is going to work and is secure.
Also take a look at the options you have to secure access to it. I use lastpass premium and they have options to restrict access to only certain countries, multi factor authentication (some of these are available to free accounts I think), generation of one time passwords to use on guest computers. I'm sure 1password has similar controls.
And both can support importing passwords from other services so try one and if you don't like it try the other one