I have read the Hell On Earth portion of BPRD.
BPRD is always a comic I wanted to read and enjoy, and I'm glad I did. The way they tell a story is very sweeping and grand, encompassing the whole world, while making you care for almost every character. The fact that they take great pains to make the story this far reaching is incredible.
Also the way they kill of characters at the drop of a hat is interesting in itself. I think the girl the survived the were jaguar attack is going to be the new were jaguar.
I also like how Abe Sapien, Liz Sherman and Roger the golem were revealed as the beings that will save the Earth. Meanwhile, Abe Sapien is currently braindead, Liz Sherman is missing, and Roger the golem has been dead for a long time now. I can't wait to see how that turns out.