ATP, hands down.
Out of my experience, I would not recommend Aviator even to my worst enemy. The school is good, manegment on the other hand...
And dont forget, for your EASA licenses, you need 100PIC and 50PIC XC.
The way Aviator do their training, you will not get enough hours for it. Every single ME-hours is dual and can not be counted as PIC.
So, if anything goes wrong and you will not get instructor time - prepare to buy 50-80hrs. Which will cost you another 5000-7000$.
2nd thing to consider, REAL cost of the training and advertised.
As I said, do your self a favour, do anything but Aviator.