I need some strategy advice. (in General)

I got 2 general questions.

1. I'm focussing on AS with my RoS, but I was wondering if it would be better to focus on GS instead?

2. I just bought a fourth minion and I'm not sure what to train on him. Haste, EC, DM, AMF, SS, a DD, AS or GA.

Thanks for the help old sages.

I would unlearn the GS and train GA on that minion instead and keep using the RoS on the AS minion.

My tank is relying on that GS to inflict some decent damage and so is my NW overall. I don't know if I can get rid of GS on my third minion. My fourth has nothing trained so GA could be a good possibility.