Nice job. Still, its depressing to me that we're excited about playing basically Courtyard-BM just so we don't have to play Rebuild.
I get what you mean, but to me there's something fun and enjoyable about using a simple, straightforward strategy like Courtyard-BM to beat something like a Rebuild rush (I have also used strong BM variants to beat slow-building engines). I guess I just enjoy that aspect of Dominion's metagame.
Edit--re: Holger's simulation data, I'm wondering the same thing that Robz888 is, deciding what to put back with Courtyard can require some thought, depending on where you are in your shuffle, what you know is still in your deck, etc. I can't imagine the simulator can account for that. Also, IMO if you're going Courtyard-Hoard (Harem or no) whether you get one Hoard or two depends partly on how your draws go in the early- to mid-game. So only buying one Hoard irrespective of anything else does not seem like optimal play for that strat. I could be wrong though.
Edit #2: to be clear, I'm not suggesting that Courtyard-Hoard or Courtyard-Hoard-Harem are necessarily superior strategies to Rebuild. It's just that I decided to try it, thought it had a good chance of working out, and it did, and I was happy about that, so I decided to post the results