For now I would say Ethereum is more preferable not to discredit the potential of Neo but I think ethereum had the advantage of being popular as it ranks second to bitcoin. Lately I have seen that ethereum didn't respond so much to bitcoins dropping of prices  Though it did dropped but not as high as bitcoin did so i think it is creating a message that it is by now making its own progress like its building its own future independent of bitcoin unlike when I first knew about it.