I prefer regular coke... i don't like the taste of coke light or even coke zero... they taste weird on my tongue... aside for that... one can of coke light can make stay away the whole night... so it is a no no for me...
Oh yes, I can feel it when you say it tastes weird. It also create like something fuzzy in my stomach, It is also true that you stay awake if you drink coca-cola light before going to bed.
I think it is OK. If I would have to bottles in front of me, one Coca Cola and one Coca Cola light, I would choose the normal Coca Cola. But if there only are Coca Cola light I can drink it.