Gigei:
Re: Kitty
One previous post describes this as on the romance side, another says it has very little romance. Both are sort of right in a way; I'll elaborate. A reader of Urban Fantasy that focuses on action or mystery would find about as much (or less) of this from Kitty as from a Paranormal Romance, and might thus put it in that category. But there isn't very much romance going on, either, particularly after the third book - less than average for Urban Fantasy let alone Paranormal Romance. The heavy focus is on human interaction, specifically the societal ramifications caused by the supernatural. After all, the original concept is a radio show where people call in to discuss their weird paranormal-related problems. (My girlfriend won't turn me into a werewolf!) In this sense it's almost closer to a 'what if' speculative fiction story than it is to an adventure or romance story.
Re: Christopher Moore
Abby Normal's PoVs are the second most painful thing I have ever read in UF/PR, beating at least one horrible rape.
Finished series:
There are very few finished UF series because that just isn't the genre's typical format. Like many mysteries and some thrillers, the authors just come back to the same characters and same world to use them in a new adventure. The series story arc is typically fairly strong but each book stands alone. Also, most UF series are quite new; most of them start around 2006 or later. You may want to look into some PR though, if you like that; the most common format there, though I'm not very well read in it, seems to be 'series' that are essentially reused worlds, in which entirely new characters have an entirely new romance, usually in a new part of the world as well.
The only finished series that comes to mind is Keri Arthur's Riley Jenson series, which is sort of UF/PR dialed to 11 - heavy action, heavier sex, and the main character is a
werewolf who is a vampire. Who fights in six inch heels.

Not a complete waste of time but not recommended.
There's also a bunch of standalones and a few minor trilogies, and a scattering of series that don't seem to be being continued but didn't really come to a story-arc conclusion either. I've recommended a very few of them below.
EDIT: IIRC Joe Pitt series by Charlie Huston is finished. A lot of people here and elsewhere seem to like it; I got bored a few pages in.
My recommendations:
Patricia Briggs, Ilona Andrews, Jim Butcher, Carrie Vaughn
Robin McKinley's
Sunshine (standalone)
Seanan McGuire is pretty great aside from some major suspension of disbelief issues I had with the first book's plot.
Kelley Armstrong is a great writer, but her series jumps around so much that it seems like everyone views her as only occasionally good - it's just nobody can agree on
which are the good ones.
Bitten should be considered required reading though, even though it has some notable flaws that may or may not be serious to any given reader.
Michelle Sagara (West)'s Chronicles of Elantra (beginning with Cast in Shadow) isn't set on Earth or modern times but it's absolutely urban fantasy in every other possible way. Unless you require sex, because it has none. This was essentially my introduction to the genre so I may have a soft spot for it but I like it a lot and so have a few other boarders.
Kim Harrison is good but I find the Hollows books strangely forgettable. A week or so after I read one I have no memory of what happened within it except that it was fun to read. The most recent one was superb though.
Vicki Pettersson's Signs of the Zodiac is a really strange superhero-ish story that I find extremely compelling... when it's not doing something really inexplicable that shatters my suspension of disbelief. I guess it sort of tries to graft a lot of elements of comic superheroes onto a less absurdist/cartoony/slapstick, more real framework, and some of the transplant doesn't fit very well. But there's some great stuff underneath.
From the YA shelf, Holly Black's
Tithe is amazing and I'm also partial to Maggie Stiefvater. Black's
Modern Faerie Tale trilogy and Stiefvater's
Books of Faerie seem to be 'complete series' in that there don't seem to be any additions on the horizon or loose ends to tie, and the last book in each has been out for years.
Edited by kurokaze, 13 March 2011 - 01:41 AM.