I have not tried Curve, but I definitely agree with you that Eternity smells relevant today. It doesn't possess a certain quality that I associate to as "old-school/80's/retro". And considering all the current stuff out there, if this were released today, I'm sure it would have a rather huge cult success. It was one (the other being CK One) of my signature scents when I was a teenager in school, and one I paid entirely from saving pocket money. It definitely is very special to me, which is why I still have it in my collection despite not actually wearing it much nowadays. I think I will wear it soon, it always brings back good memories! It's probably one of the better aromatic fougeres (much in the vein of Cool Water, IMO) around, IMO.
If it matters, I'm well below 35.