Well comparing the two is a rather hard thing to do, since they really are very different. However, I'll try to compare them anyways
GC has a really good AI...in fact, it's too good in my opinion. I can't say with any degree of accuracy, but I think the AI cheats blatantly. They always sent their ships directly to the best planets, before I had a chance to get there, they always researched faster...it was really very frustrating. Speaking of the research, it sucks...badly. Especially compared to SEIII/SEIV.
SEIV has a lot going for it...mods, replayability, support from the community and game creator, etc. The worst part is the AI. To put it bluntly, after you've "mastered" the game, it offers no challenge really. However, the TDM modpack does make this way way way better. I can rarely beat that AI...and it doesn't cheat!!
There's much more I could say, but my time isn't infinite.
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Courage doesn't always roar. Sometimes courage is that little voice at the end of the day that says "I'll try again tomorrow".
Maturity is knowing you were an idiot in the past. Wisdom is knowing that you'll be an idiot in the future.
Download the
Nosral Confederacy (a shipset based upon the Phong) and the
Tyrellian Imperium, an organic looking shipset I created! (The Nosral are the better of the two [img]/threads/images/Graemlins/Grin.gif[/img] )