Ok.. I have a Emp. with brine & i like it much better than surf or h. pump.. Yes it is situational but who gives a shit, it works well. My emp. other moves are grass knot, flash cannon & ice beam.. 31 ivs in hp, def, sp. atk & speed.. didn't even bother ev'n the speed *use it for a trick room team while holding iron ball* i stuck w` hp & sp. atk & its pretty good that way.
Uh.... I think this is self explanatory.
About HP Ground Mence: People SHOULD be using it, but nobody does. I've never found someone using HP Ground on their mence, so no it's not the most common option. It's not even a standard choice on the default set, because people are paranoid about Choice locked Ground moves.
The 44 thing was saying if you had a 20 HP IV where one would put the EVs. It's actually probably better to have a 28 HP IV and 40 HP EVs so that you can max SAtk.
Thanks for all your help, guys.