We already talked about this, but yeah they're basically polar opposites. Snyder is a great writer in the technical way, but his plotting and characters are pretty weak. Joker's whole premise in Death of the Family is pretty flimsy. Lobdell writes great characters and has really cool ideas, but his writing is really rough and unrefined.
Ultimately for me, I'm way more interested in the latter. Superhero comics are inherently juvenile (for the most part), so for me what works for them is being highly imaginative and energetic. When you try to be overly serious (and pretentious) it sucks out all the fun out of it, and that's one of my problems with Batman.
H'El himself isn't that interesting, I'm seeing the plot as more secondary as a chance for the characters to come together. You have Superman and Superboy building a dynamic, the Justice League coming in as a whole to play off both characters, Kara being misgudied by H'el and anatgonistic to Superman/boy because of her tragic experience with Krypton, etc. Some more insight into Krypton (building off what Morrison did with Gene Ha).
On the other hand, I think DoTF is a really flimsy premise to begin with, and really contradicts some of my favorite moments pre-FP, namely Joker being highly amused and entertained with Dick and Damian. The face gimmick does nothing either. The Owls were really flimsy too, but at least CoO works as a simple blockbuster and doesn't take itself as seriously as DoTF (though that's not saying much).