Check my other top level comment in this thread :).
I confess I had a failed de-dupe bug on HN (last week I think?) and so I just assumed you fell victim to the same bug and didn't realise the posts are subtly different.
FWIW, currently Errors winning vs Exceptions 6-1.
Are you doing A/B testing by looking at the votes for each one? :)
That's really a side effect :). I just wanted to point out that given the right sugar and abstraction capabilities, the two models are really equivalent.