I've been drinking tea with milk and sugar since I was 4 years old, 20 years now. Red Rose has been my tea of choice for the past 6 years. It has a great flavor, steeps well for only a couple minute, nice and strong. The price for a 100 bag box is about $5 I believe which usually lasts me about two months.
I will say that I do prefer Twinings English Breakfast every once in a while as I feel that offers a more almost sweeter taste, more dimensional. But for the price and the amount you get, Red Rose is great.