The Three Best Choices
I love my aesthetic Element Case Black Joule Chroma stand. So I recommend it.
It is beautiful (matte black finish, which looks better than previous anodized black version I had for iPad 1), simple, versatile (three angles with magnetically attached leg) and very stable. It came with sturdy carrying case, too. Only con is the price. Note that it works with bare iPad only (My iPad is absolutely naked! I only use a sleeve on the go.). 😎
I've also used jadu skadoosh stand, which can tilt at multiple angles with touch of a button. It can accommodate iPad with some popular cases. It is also stable and sturdy (does not wobble). Only con is that it is somewhat bulky to carry.
Twelve south compass looks like the most reasonable choice and it is the most portable iPad stand that looks stylish and functional. However compass stand does not hold onto iPad firmly like Joule and Skadoosh thus it may wobble when typing.
All three are excellent choices. Choose the one that works for you.