i think its bit too expensive for the specs, you pay a lot of premium for the U series processor, which is just more power efficient.
with this price you should be able to find one with dedicated video card (Nvidia or ATI/AMD, not intel HD series).
if you cant find anything like that, the last one is best of the three.
PS: the brands doesn't always matter, i've seen cheap asus which are far lower quality than acer.