I bought all new hoses this last Fall. As I have 3 dump valves and 2 connections for black-grey and grey, I set up (when full hook-up) with 2 hoses coming out of each connection and tie them together with a Y, then a single line to the sewer pipe. I also carry enough hose to reach 50 feet from my "Y". You NEVER know where the dump pipe will be in a campground, especially when you have a 35 foot camper and the valves are in the middle.
Well, I had my old hoses (simple, plain old style hoses), for about 10 years. Replaced a 10 foot section a few years ago, but for the most part, they've held up pretty good. Now, I am careful with them, and they NEVER go into the trailer bumper where metal shards will puncture holes.
With that said, I feel Rhino is probably the best. But to replace about 75 feet of hose with Rhino would cost me a fortune. So, I'm just sticking with the lesser brand.
My collection:

And for those who think you only need a 10 foot section and that's enough, you just never know what the conditions will be when you pull into an unknown campground:

Tip for the OP. Consider how much hose you will be needing. Measure the distance from the pipes on your camper to the end of the camper. That is the bare minimum length you should have. If you camp in new campgrounds you've never encountered before, I would suggest you double that amount.
For example: Total length of your camper is 30 feet. Your dump valve is 10 feet from the front of the camper. From dump valve to the back of the camper is 20 feet. You should always carry at least 20 feet of hose. Now, no 2 campsites are ever alike. The sewer connection might be a distance behind, it might be beside, it might some somewhere else. To always be prepared, carry at least another 20 foot of hose. Now, if you camp in the same camp site every time, you can get just what you need. But if you travel, you will find the hook-ups are all over the charts.
I also carry a 10 foot one (that grey one), specifically for using at dump stations. It's a thicker grade plastic, and I've had it for years and years.
Now, to purchase all that hose with Rhino? That's a bit too steep for me. I even considered one section of hose at a time. But since my old hoses worked so well, why change?
FYI, always carry ample garden hose with you for fresh water, for the same reason (I carry 200 feet with me all the time!)