what is the best se tube amp

I am interested in seeing what fellow ag members think the best single ended tube amp is, or at least your favorites. In this never ending world of the latest is the greaest (B.S.). I am considering changing to a se amp and am not sure witch way to go. I am now running a CJ Premier 11a into ProAc Responce 2.5 speakers. Any pros and cons are also apreciated.