I actually like Ergo Proxy from what I've seen. I, too, am not usually a big fan of that type of artwork, but thusfar the story actually has be interested, and I REALLY like random anime. If a series skips around and has me guessing, I like it. A lot of people don't, but to each his own. I, too, have to finish a series when I start it, lol. It gets annoying sometimes, especially with a series like Ai Yori Aoshi, where the main character makes me want to strangle her to shut her up. lol. BUT I gotta finish it! (^_^)'
As for Ran, No. No, you will not start Shakugan. We have discussed this, and it's MINE. It's all MINE. You agred to this. Fine, pick one: Shana or Higurashi