Valium is the best all around benzo ever to me, no doubt. Klonopin being a close second place. Xanax comes in third, I don't like how it makes me feel like I am invincible and can do whatever I want when I take more than 5mg.
I think that isnt really answerable without adding a ''for something'' after it.
IMO
Diazepam is the best for General anxiety and insomnia
Alprazolam is best for Situation related anxiety (like social anxiety or phobias) and panic attacts
While Clonazepam is okay for General anxiety,insomnia and panic attacks but its best feature is its ability to relax muscles and reduce convulsions.
Now for thier polyvalence I can say for sure that Clonazepam is the most polyvalent then Diazepam then Alprazolam.
Then for their recreational values Alprazolam is 1rst and then Diazepam and Clonazepam are close to eachother with diazepam. ahead.