Let's look at the Apple Watch in action and compare, shall we?
Beginning of the video at 10 seconds, missed input on the digital crown requiring multiple taps, then severe input lag as he drags his finger around the screen at 20 seconds and again, more lag at 50 seconds, missed input taps at 1:20, and so on.
The App launcher is horribly inefficient with having to use the spinning crown. Overall the UI is cartoonish in nature (and talk about a pathetic gimmick with sending little cartoons you draw with your finger on a 1.3"screen?), slow and completely lacking without an iPhone right next to it.
Additionally, the toy-like and very feminine look of the Apple Watch is just ugly.
You see, we can balance out criticism from one UI to the other, all day long. But here's the difference. Lots of people own the various circular Android Wear watches and actually like how it works. How many have an Apple Watch and can confirm the smoothness, how well it actually functions, how good software updates are, etc? Oh yeah, none. You might want to wait until the Apple Watch is actually on people's wrists before comparing to a 'real' consumer product.