I am currently on Enbrel but it is taken along with MTX, most of the bio's are taken with MTX or arava which is similar. Is there a reason why you won't take MTX? because it is toxic, it is I agree, but the three you list are much worse. Anyway, to answer your question, the Enbrel works for the most part, but there are times I have taken it and still flared and it felt like I didn't even take my meds. So it is a matter of trial and error. There are so many bio's out there, more than the three you listed. Simponi is another that comes to mind.
I know the pain you are in, good luck with your appt!!