It seems that Blogger has finally added a much-needed feature as noted below. Perhaps if they had been more responsive sooner, I would still be over there blogging, but having experienced the other features that WordPress in combination with Flock provide, I’m afraid there is no turning back for me.
Here’s the notice from Blogger about their new feature:
The ability to moderate comments as they are added to your blog can be very handy in certain situations. Perhaps you have very spirited discussions where tempers are prone to running a little high, or perhaps you just want to catch any comment spam before it reaches your page. Whatever your reasons, the comment moderation feature will let you view all comments before they appear on your blog, giving you a chance to approve or reject them as desired.