|This is how we used to do it in the old days, kids.|
Truth be told, I miss the days of yore, when characters were scrawled on sheets of lined paper in pencil. The way that games have developed over the years, with increased character options and a variety of different systems, has made tabletop RPGs more dependent on official character sheets. If you look at a 2nd edition AD&D character from the 90's, and then compare it to a character sheet from D&D 3.5 (or even 5th), you'll notice there's a heck of a lot more to record and write down. At least, it feels that way.
I appreciate a well-designed character sheet just as much as the next gamer. I'm generally pleased with the quality of the sheets made for the games I've been playing over the past few years. Edge of the Empire/Age of Rebellion, The One Ring, and D&D 5th edition have perfectly functional and visually-pleasing character sheets in my opinion.
Are they cool, though? Sure, I guess so. Are any of them the coolest sheets ever? I really can't say. They do what they're supposed to do. If they ever invent a character sheet that can roll my dice and track its own hit points, I suppose that might earn the title of "coolest."