The MMXIV logo is almost good. I kinda dig the idea behind it. The execution is lacking though, in two ways. It should be immediately obvious that the letters represent the Fab Five. Which isn't the case, they are poorly represented. And, secondly, it looks silly to repeat 2014, first in Roman numerals then written out.
The castle one is alright. It does harken back to Mary Blair, which, if one is positive, shows a sense of tradition and pride in Disney history. Meanwhile it still has a certain style of its own. The castle itself looks a bit off, but the thing does exude a sense of childish delight. It's not bad, actually.
The third one is unmitigated ugliness without any redeeming feature.