I've read TenTen from time to time, I have read GTO I don't know how many times, Rave I started to read, got kind of far and then switched to Fairy Tail instead (same author, liked it a lot more), and I openly despise Trigun.

I can't say I've even heard of VG Daydream, so out of pure curiosity, especially from that description, it gets my vote. Even if it's bland later on, I haven't had a decent ghost manga in a while.