I have never met a rod that I could not cast.
True. gfen let me yard cast one at a jam that came close. I could cast it after a bit but serious adjustment needed. Other than that, yeah, I can cast them all. But not all as far, or as accurately, etc. as others.
As far as distance, my cast seems to fall apart at a certain distance, but that distance does indeed vary with the rod. That said, the one that casts furthest doesn't always feel best at more reasonable fishing distances. And some rods can really throw a ton of line provided there's no weight on the end, but be heavily effected when you add it. Others don't change nearly as much with added weight.
I may be the only one who will ever admit this but I can't tell the difference between casting any rod compared to any other rod out there.
Yeah, that's not anywhere near true for me. Every rod feels very different for me, and this was true even when I was just starting. Where it gets tricky is coming to some sort of ranking for "better". Different doesn't mean better or worse. And one could be better at one thing and worse at another. In the end, all of those differences probably aren't going to make much difference in how many fish I actually catch. Oh, sure, a fish here and there. But 98% of the fish I catch I could probably catch with just about any rod. And those I can't catch, a different rod ain't gonna help, the problem is ME.
I just have a thing about using others fly rods. Never feels comfortable.
I've used ones that felt comfortable, but it's the exception. My most common fishing buddy likes soft actions, the opposite of me. And using his never feel comfortable. I do recall one, though. I fished with a buddy on BFC and we switched rods, he had a Sage something or other that was just fantastic. I thought about buying the same, but didn't, cause I didn't "need" it, and now I don't even know what "it" was. I will have to ask him.