I wnat a hippie perspective on this. If you have facebook you probably know most of these applications, if not its okay you arent missing much(except for dope wars) Im sure there will be more responses for the worst apps considering there is way too much crap on facebook. Hobo wars is alot like dope wars. Both are awesome applications. Cat vs. Dog is stupid. i dont understand why people try to compare us to our favourite animals. Which spicegirl are you? screw that. virtual rock paper scissors? Or virtual kegstands? A serious waste of time. Scrabbulous is awesome. The day i stumbled on it, i was hooked. Blabble is another useful one. Not alot of people use it though. Thought bubbles in your pictures...this can get fun. http://www.movietrailerlive.com/ct_0002_SoloBlabble and for the record...compare people is dumb.
I have given up on facebook apps. I normally play one for a few days for a lot of time, get bored and then delete it. I have yet to find one that I actually properly like, although they are a good way to waste some free time.
i dont know..alot of applications are useful to me, not just games and entertainment. i wisht here was a facebook paint, kind of like microsoft. thats what i really want.