Tizen has in many ways been better than Android Wear up until now though, but Google have caught up quite a bit with the latest update.
That being said, I would love to see a 2.0 version of the Gear S - preferrably with Android Wear instead of Tizen. That would be a guaranteed day 1 purchase for me since I already consider the Gear S to be the best smartwatch today by a huge margin. That it does not try too hard to mimic the look of an oldfashioned watch is just a bonus in my book - I do not see why these devices have to be forced into a form factor that only hinders the possibilities.
PS: The round version of Gear looks interesting though - if it has both GPS and support for a SIM card (and the traditional watch looks that lots of people seem to like) it will surely offer a lot more than the Apple Watch.