The points made already have been right on. But at the end of the day, I think the very most important thing to look for when purchasing a Tarot deck is to find the one you relate with the most. The two decks you are considering are quite different in terms of their artistic style (beautiful versus cute). They are both great decks and thanks to the wonders of the internet, you have gotten a good feel for both of them.
Which, of the two, can you see yourself spending LOT'S of time with?! Regardless of how well respected a deck may be, if you don't resonate with it, it will never hold any magic for you.
You already know which deck you want. Listen to your heart and proceed accordingly! Good luck!
weaver