[gregebowman]

I agree with Fyron. The games are 4X, but that's as similar as they get. I like both, and probably devote as much time to one as the other. I'm more familiar with SE4G, and the modding process, so I'd say it's easier to mod SE. But GC is moddable also. You'll just have to try it to see if it fits your particular tastes.