Actually, for a logged in user, LJ's comments system is much better than bloggers, across the board. But for a non logged in user, it sucks, that I'll give you.

Alternately, log in using the OpenID thing; a TypeKey identity or a ClaimID identity is very good for that, don't think Blogger supports it yet but it might. Logging in using OpenID is good, as then people can let you read filtered posts that aren't open tot he general public, etc...