I used Answer once. Got a clear positve, went to Doc, their test was negative. Blood work came back positve though. Didn't find out for 2 weeks though about the blood test. That was with DD.
I have alse used Clearblue Digital. I REALLY liked that one, alot BUT it's one that reads at higher HCG (I think 50) so not so good for testing early.
I HATE CVS tests though. They always seem positive to me so I never use them anymore.
And any blue dye tests I avoid like the plague. Evaps look too much like positives and I've gotten a false postive within 2 minutes of taking one before.
I love this website for info though, its fun to read...
http://www.peeonastick.com/hpts.html