Sins of a Solar Empire: Rebellion vs Endless Space

[FS~Phat]

Hi Guys,

Just wondering if anyone has tried both and what they think.
I've always liked the space opera theme and especially the old wingcommander series.
I know one of these games is a true 4X (ES) and Sins is a blend of RTS/4X.

I could never get into X2/X3 Universe (too complicated) and my last foray into 4X was... well probably never, since most of my time in the 90's & 00's was spent in space and flight sims with the occasional FPS and RTS.

So the question is really... would Endless Space turn based game be a softer entry into the 4X world or the automation and RTS of Sins be a better first plunge?

Keeping in mind I am already short on time, I dont want a huge complicated learning curve but I figure Im probably missing out on something fun and different by not giving these types of games a go?!?!?

Your thoughts?