I like the cow best. You can see whats going on and interact with the owners.

 There WERE profit comparison charts for both cow and middle, but middle turned theirs off about a week ago. Cow was beating them probably 5 out of 6 times.

 Multipool.us I didnt like because you wind up with lots of tiny fragments of coins that often arent worth the transfer fee out or are below the minimum to send. Also it seemed less efficient at mining than places dedicated to just one coin.

You might like to try BAMT too: 

https://litecointalk.org/index.php?topic=2924.0

It's basically Linux, AMD drivers, and cgminer all pre-built for you.   Just write the image to a USB drive using the directions above and set your PC to boot off of USB (if it's not already).  Plug the USB flash drive into your PC and reboot when you want to mine, reboot with the flash drive removed when you want to run Windows. 

I'm not familiar with mining on Windows, so I can't say if you will have better luck/performance, but it shouldn't take you more than 30 minutes to try BAMT and see how it works out for you.

Yeah, it's kinda suspicious that the profit chart stopped at Middlecoin right before they killed the cow with double to triple normal profits riding the Doge days before anyone else.

Then again it looks like those days are over and they're gonna be going back to the neck-and-neck performance of previous weeks. Recent weeks before that amazing run, the cows were mooing past Middlecoin. Wonder what the race will look like this week

I have no idea about a fix but I'm having issues too.  If we mine one coin for a long time like the 8+ hour's of WDC we just did I never reconnect after stratum disconnect to switch coins, doesn't even switch to failover.  I have to manually restart as well.

Good Question !