Arimidex verses Tamoxifen who wins?

Hi deeney thanks so much for the information about the Verve program. I have just signed up. I wish I had known about it from the beginning - my first year on Arimidex was a nightmare. My doctors implied that it wouldn't be any different to Tamoxifen (which I had coped with very well) but the joint pain, weight gain and depression were enough to make me consider stopping it. Luckily I persevered and I am now feeling 100%! I am back exercising, my depression is gone, it's weeks since I took any pain killers for my joints and the excess weight is not as excessive as it was last year! 
The key for me is the exercise - but it is so hard when your body aches so much. 
Good luck to those ladies just starting out.