Good question.
I want to see Bitcoin get smacked down because at the moment it is rubbish and it should not be the market leader. Reckon a big BTC drop would cause a correction across the sector due to all the BTC trading pairs and crash a few of the big scams like BitConnect and maybe Tether.
It would hurt sentiment a lot and maybe reset the current mania. Would be an awesome time to buy into DPoS coins at that point but I might be waiting for something that never happens :)
not when these hard forks are coming left right and center... Get ready for the Segwit 2x fork. https://steemit.com/bitcoin/@foovler/segwit-2x-for-real-this-time