I also considered the thinkpad yoga, but it's not enough of a tablet for me, and the aspect ratio of the screen is "wrong" too despite the massive resolution it offers. The very same reason I wouldn't consider a surface pro 2.
I can understand the frustration with many coming from surface pro 2 to 3. In a way it's like Microsoft should have called the pro 3 a different name, a different model as it's a different form factor from the previous two and many, like me will be first time adopters for that very reason as the appeal is different. For what I do having the extra screen height greatly helped in my decision over what to buy - plus as mentioned before the huge bonus of being able to lie the SP3 nearly right down and use it like a graphics tablet. I think I will make great use of the note-taking aspect too.
I'm still mega excited about getting my SP3 and still have to wait ages! If the performance ultimately doesn't meet my expectations I will of course be disappointed then I'll be forced to think about changing it for a laptop, but that's really not what I want, the SP3 is the nearest I can see to being my ideal device with the tablet advantage and note taking. The pro 2 while I think it's great, just isn't quite what I'd be interested in if the SP3 had to go back and I'd be back in a dilemma about what to get instead.