Come mine Noblecoin with us:

https://nobl.hash.so/

* 1% default donation, can be removed but please don't
* Super fast servers
* vardiff
* Default MPOS layout, the one you know well (efficient!), Internals have been optimized to make it faster!
* stratum on port 80 and 443, which helps if you are behind a firewall
* One click coin switcher, mine all of our (21) coins with ease!
* PPLNS
* Very nice admins, come say hi in IRC #hash.so @ freenode