From a watchmaker's perspective, I think Rolex make much better movements then they are given credit for. I think they could do more with the Cellini line in the way of display backs as they have in the past with watches like the prince. As for the design, I see Rolex being a lot like the Porsche 911, in that the original design is the product. Personally I would much prefer a JLC or Steel VC 56 to a GS, I just think the whole Rolex comparison game is beating a dead horse. 

Hi, if you wear a Rolex everyday you'll encounter the same amount of wear. If you leave on a winder you're needlessly adding that amount of wear. Ultimately it's up to the end user, but with most watches it's fairly simple to set. On a watch like a 1803 it may be more convenient to put it on a winder, but you need to be in top of keeping that watch serviced.

Grand Seiko is a nice watch, they have in my opinion 4 or 5 really great models, but they are not Rolex and will never be the Icon or status symbol Rolex is. When is the last time you had to be told how great Rolex is compared to brand X? Grand Seiko fans should enjoy the brand and stop using it as avatar to go to war with Rolex owners.

Wear your watches in rotation if possible. The oils will only see major effects if sat for long periods of time. I strongly recommend keeping Rolex off winders due to excessive wear on the rotor axle. 90% of Rolexs I see that have been on a winder need the axle replaced and most have damage to the plates and rotor from a worn axle.