How so?
Doing this
Code:
alias myalias.one { }
alias myalias.two { }
alias myalias.three { }

as opposed to
Code:
alias myalias.* {
  if ($1 == one) { }
  elseif ($1 == two) { }
  elseif ($1 == three) { }
}

would involve almost the same amount the same amonut of phrasing and would not make the script run slower.