Interested in SE-V -- differences to GalCiv II?

[tinkthank]

But all in all you would recommend SEiv over SEv because the AI in SEiv is better -- due to mods? (I assume I can find out where to get which mods how etc. too if I were to buy the game...?)
The tactical combat in both is also TBS?

[Captain Kwok]

In SE:V, the tactical combat is in real-time.

If you'd only pick one of the two to buy, I'd go for SE:V. It's not quite as polished or has the same mod base as SE:IV yet, but it features generally better game mechanics and is more flexible for modding.