Which is more constructive?

[Achebe]

My personal preference is to be told why I'm crap. But it needs to be educated criticism, not 'I don't like your face, go back to where you came from'.
My personal style of giving crit is fulsome praise or generally having a go. It's not ideal, and I haven't quite got around to writing quality crit.
I'm in awe of people who are able to give well thought through, balanced feedback.

But Weeded, would you prefer to be praised or damned? I'll do the opposite, of course.