Rose was a good idea starting out, on paper and in the earlier episodes, but left a bland aftertaste in my mouth shortly after. her story arc was complete but they ruined it I feel by bringing her back in Series 4. No companion before or since has been given such consideration, for lack of a better word. And if anyone deserved it, then Sarah Jane or Leela or even Romana I sure did. The new series has yet to reach the heights of what Tom accomplished.
And oh my yes, jelly babies are great, Ive had a variation of it and no wonder Tom's Dr enjoyed them in the series.