I too can't stand Pukozade. I especially hate it when I'm in hospital and am woken by the nurses at 3am to down some because I've gone hypo. 😡 Fortunately they sometimes give me a hot choc instead, which I vastly prefer. 🙂
My go-to hypo treatment is 7-Up Cherry; no caffeine, no artificial flavours, no colours at all, just pure liquid sugar goodness. 🙂 I have 4 litres chilled (3 of which are portioned out into 250ml doses), and another 6 litres in stock (I stocked up when it was going for 99p a 2 litre bottle).