Ok, from what you've said, I can see why Jared might not be your cup of tea, and yeah, I agree, the hand tattoo was a little stupid, but bear in mind that a lot of his filmed scenes weren't included in the theatrical release. From what I've heard, there's at few of those scenes that show more of his sadistic side, especially regarding his relationship with Harley. Hopefully, we'll get an Ultimate Edition of the film like with BvS so we can see. To be fair, though, he was a devisive pick from the get go, so it doesn't surprise me that we disagree on this, and I don't want to cause an argument, so I'll drop it.
I agree with you about Lex, though. Jesse Eisenberg is a good actor, but his Lex feels off.
I think the main reason the DCEU feels disjointed to me (and I'm speaking solely for myself here) is the fact that the films and TV shows exist in seperate universes. Say what you will about the quality of Marvel's TV output, but they all tie in with each other and the movies, and it all feels like a consistent, whole universe. DC, on the other hand, rather than go through the rather clunky process of setting up the Justice League in BvS, could have potentially tied in both TV Flash and Arrow (even Gotham, at a stretch) into the films world, but they haven't. It feels like a misstep on DC's part, to me, and makes the DC universe feel a little emptier than Marvel's. Then again, maybe I'm just being picky. Justice League looks like it'll be fun, and I'll admit, Ezra Miller does look awesome as Flash.
As for Superman, I can see where you're coming from, it just feels like Zack's putting too much angst in the films. Don't get me wrong, a little angst can be good for stories like these, but Snyder over eggs the pudding, BvS being the prime example. Plus, I found myself rooting for Batman throughout the film, which didn't feel right, for some reason. It's a decent film, and I enjoyed it more than I thought I would, considering the reviews it got, but the tone just felt off, like it was a Batman film with a Superman cameo. Ben Affleck was great as Batman, ditto Henry Cavill as Superman, and I want to see them on screen together again, but not with Zack Snyder at the helm.