So far on Evochron:
I don't have too much playtime in that game, but it is a major contender in the genre, I think. It's got a steep learning curve without Eve's forgiving "Even if you don't get X or Y by the end of the tutorial, you can still do Z while learning the other two" tendencies. In Evochron you have to pay attention during the first tutorials and pray you don't miss anything. The game is complex and challenging. The game it's closest to in the genre would probably be the X3 series. Fight, trade, mine, whatever. The differences are there, of course, but for comparison purposes it's close enough.
I'm enjoying the vastness of the game along with the fact that it doesn't hold your hand much.
It's really hard to try to review it without getting another twenty hours of playtime in it first. I guess I just have to mention the cons so far: The graphics are... not AAA. I don't mind it and don't really notice it to be honest, but for some it matters so it needs to be mentioned. It's not too intuitive and it's easy to fuck things up until you learn it. Once you start playing, though... I think you'll like it, especially if X3 appealed to you.