The perfectly amazing May of Milday Insanity has done what no one else has done before: blogged about the the differences between HELL'S BELLES and SUCCUBUS BLUES.
It's a terrific post. Richelle and I both think May nailed the big differences between the two books -- and more than just the fact that HB has a red cover and SB has a blue cover. :-)
She'll also be reviewing the books, but closer to the actual launch dates -- HB toward the end of the month, and SB closer to March.