I've had a Pebble, the Galaxy Gear and now the Gear 2. I definitely think the Gear 2 is the best. There are pros and cons to each and everyone has an opinion, but as for me, I'm a Gear 2 man. There has been much discussion about the lack of apps, but having had the other two devices, I know that comes with the territory when you buy a device this close to its release. Unlike others, I don't believe Tizen is going away, Samsung is ready to start testing Tizen smartphones in International markets and apps should flood in. I also think stylistically, the Gear 2 is head and shoulders above its predecessor.
But again, everyone has an opinion and all of that is up for debate (which I keep telling myself I am going to stop doing - with little success).
That being said, it's important to note I dig having flagship devices. I may be shallow, but I like having the newest, coolest and sexiest technology. So if the Moto360 is amazing, or Samsung releases something new - say a curved display running AndroidWear, I'll have my preorder in and this device sold or given away in no time.