Of course X11, or at least not Scrypt.
Since the Scrypt asics are on market, the mining has become only profitable to a small elite who can afford to develop such hardware.
This centralisation of cryptocurrencies goes directly into the basics of the whole concept of cryptocurrency.
Eventually asics will kill the whole concept and need to be stopped.
Therefore I would like to see, if safely possible, all crypto's switch to asic resistant algo's