So yeah i am preparing to start Saga after i  played a bit in open beta, and i am not sure what to play now.

I was thinking nature, but i like light too, heavy cav and charioteers <3. Need sugestions:)

well i only played Light nation, and i am loving it. A great combination of good cavalry(heavy cav, heavy lancers) units and good range units(charioteers, giant bowmen), and decent flying units too, it good for me.