I really like the new Aatrox interactions
Making the voiceline trigger when you enter lane against your opponent was a great idea, makes it easy for people to hear them.
I also love the new voicelines themselves. They make you feel how angry Aatrox is. Most champion interactions are just the two of them talking like it's some quiet teaparty. Aatrox doesn't like that. Aatrox doesn't fuck around. He walks up, confidently insults his opponenst and either challenges them or tell them that he is going to kill them. Straight to the point, and fits really well with his character.
Nothing about the old Aatrox interested me, however the new one definitely has my attention. Now they just need to give Varus a new VO and the Darkin champions will actually make sense.