Skills that work or don't work well in merciless?

So, i have gotten my feet wet with the game, got a char to 45.

I see how skills and their support play a HUGE roll in the game.

I am curious, which strength skills marauder vets consider the best and worst for end game.

I would be interested in other blue/green skills too but mainly am wondering about strength skills. I think it would be cool to have this info in one place.

Ground slam and Lighting Strike are a solid choice end game.

Sweep is good but a bit situation. ( i find my self go below 50% more often when i use sweep instead of ground slam. sweep is good when u fight the mob that like to surround or tele on u.

Haven't try infernal strike yet but i heard it really good on specific build.

Rejuv and decoy totem i always nice to have. ( i mostly use rejuv now to fight off poison)

Sounds good, thanks.