Honestly, Mood, I think ripstop sucks. It's cool that it's lightweight and dries quickly, but it wears out way faster than anything else. As pants, I don't mind it so much. But on collars? I think other cotton variations are way better than ripstop. Twill, denim, duck canvas, canvas, or whatever else is out there seems to be far more durable.
I had a CTRL Supreme Standard (1st batch). It was one of my favorite gis. I loved the navy blue accents and stitching. More importantly, I loved the fit of the gi. That A2T fit amazingly well. I loved that gi so much I actually wore it as little as possible. I owned it for 1 year, but only used it 4 times. Right after the 4th wash, the collar collapsed completely. I replaced it with the Blue Supreme, which does not have a ripstop collar. I can tell you right now that this gi is built like a tank, and that collar will probably last longer than any of my other gis.
The only ripstop collar in my gi collection that hasn't started to fray even after repeated abusing is from my Killer Bee Ligustica. I don't know what it is about their materials, but KB makes seriously heavy-duty gis.
Then again, a year of constant usage may be the limit for some gis. I don't know.