Leap Slam vs Ground Slam + Anger in 1h Solo Race

So I have done a few 1H/90min races as a Marauder and every time I have gone for the Leap Slam gem as reward from Brutus. But I have starded to wonder if it would be more effective to stick to Ground Slam (Or maybe Sweep) and then pick Anger as Brutus reward instead.

Thoughts?

Leap Slam all the way and only way. With it you don't require MS boots, don't have to kill Hailrake for the quicklisver flask, you can use all type of weapons, and jump rush prisoners gate and the caverns.

GS with Tribal Maul is sooo bad :D