I've been mucking around with different coins in MPH to yield more bling and seem to default back to XZC for CPU. Although the recent jump in difficulty was not the most interesting things to see. Turned out a group of individuals found a way to manipulate with Amazon AWS service. Go figure!

So with current 5-5.5k difficulty and 2.3 MH/s, MPH is rewarding the user with 0.25 XZC/Day (which at the time of writing is 2.29 USD).

To compare the above with others while having the same CPU setup:
Grosetlcoin: 200-500 difficulty, 3.5 GRS/Day, 0.43 USD
Zclassic: ~40k dificulty, 0.18 ZCL/Day, 0.24 USD
Granite: so bad ... wrong algo
and so on...

Even without patiently waiting for larger statistics/data sets to analyse XZC is a good option. Zcoin is officially deemed as CPU-friendly anyway.

If you are now wondering is mining with CPU profitable - no.