I've been wondering myself what the actual rates are for different pools.

I was mining only on Ahash pool, and I realized that their estiamations are inflated. Especially when comparing with Hashrefinery, even for algorithms that are not 'hot', all estimations where 20% higher.

I have a small rig with 3x1070 and right now I'm running an instance of MegaMiner on each so I can compare between Ahash, Hashrefinery and Zpool.
I'm running into different problems comparing the pools though. For example it took a lot of time for Hashrefinery to give me some XVG for the x17 I minned because it's a smaller pool, and there where only about 100 other minners for x17.

Comparing actual vs estimated is even harder as the estimations vary wildly.

I've also made a small monitoring bot to access pools' API every 2 minutes and write results to CSV file. I can then open that in excel and make some graphs over real profit made.

For now, Ahash pool still seems the best, but this experiment will need to run for a lot longer to be sure.

Let me know if you guys are interested in this, or have any other suggestions, and maybe I'll post some numbers a few days from now, when more data accumulates.

EDIT:
here's the tool I made:
https://bitcointalk.org/index.php?topic=2783884

EDIT2:

I have a 3x1070 Rig. I've run 3 instances of MegaMiner one for each card, pointing to Ahashpool, Zpool and HashRefinery

From this morning, this is what I have until now:
https://i.imgur.com/HK7k1XT.png

I find interesting that both hashrefinery and zpool sometimes the total earned ammount drops a little, while ahash only goes up, and is more consistent, you get many smaller increases, while zpool has some huge jumps (one of those might come later for hashrefinery too). We'll see in a couple of days if we find out anything else.