The four logo I like:
1. The Esperanto-inspired logo, because it relates to something. Other just "look cool" (or not) without any explanation behind it. I don't like the logo itself though, Just the idea to give some meaning to the logo (here, Esperanto is a good idea)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FqwKF8bh.png&t=663&c=XnHcUxNBHj8zew)
2. "The illusion of a M", for its creativeness. But I looks bulky, heavy, not something I'd like to see in a currency (except if you are talking of the currency of ancient Sparta, which was deliberately difficult to handle)
3. This one is esthatically the one I like the most, but it looks like a superhero logo. Not that kind of feeling I want to convey on a curency
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs25.postimg.org%2Fnsap3qqjz%2Fmonero242.png&t=663&c=6omjDo7c_cFs0w)
4. Finally, the more classic is the one I am considering the most, at the moment. Granted, it could be refined (you can get a nicer font, a sans-serif would be more adapted
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FBKKravy.png&t=663&c=wvw_HplA7o-N2g)
So, to sum it up;
- Logo with a meaning
- Not "in-your-face" logo. This is a currency, not a videogame
- Try to make it creative, like the "illusion of a M"
On top of this: this is only about the logo. You can propose a slogan, but it won't be part of the choice and if the logo is adopted, the slogan could not be - and the other way around,n a slogan could be adopted without the logo to accepted).