Just saw this http://activehead.com/dotnetweblogs/ in my referrals. Apparently my Reader Reward program is one of the most talked about posts.
I actually think our default blogs.msdn.com homepage should offer this sort of view... maybe with a couple of sentences from the post as well to help users figure out what the active discussions from that day are.
I also think its important that this type of feature, however, be time limited to prevent the posts from being self fulfilling most talked about.
In the meantime I might start doing my daily non-subscribed blog reading from this site as well since their main page actually keeps posts from the whole day (rather than just the last X entries) so you don't miss anything. Great work guys!