[querulous]

There's too many variables to just state which hand is 'best'. Heads up, TT is about a million times better (note: rough estimate) than T9s. Against 8 other players, T9s is a monster favorite compared to TT. Facing a reraise in a deep stack NL situation, most players would rather have 67s than JJ. Shorthanded in a high blind/short stack situation? JJ is much better than 67s. You suspect your opponent has AA? You'd rather have 66-99 than KK. You have no idea what your opponent has? You'll take KK.