En cuanto se refiere a little y few hay otras particularidades a observar.

Particularidades
comparación de little little - less - least
comparación de few few - fewer - fewest
mucho menos (en singular) much less; far less
mucho menos (en plural) many fewer; far fewer
expresión idimática: bastante quite a few
first, last y next en relación con el descripciones temporales se usa muy a menudo con few
Ejemplos
They have now less money than before, but more happiness.
The least you can do is to talk to him before you leave.
This year there were fewer guest at the party.
He had the fewest mistakes in the last test.
This year we had far (much) less snow than last year.
Nowadays far (many) fewer children are born.
During our trip we made quite a few new friends.
The first few days after her stay in hospital were difficult.
The next few weeks will show whether we are right or wrong.