You could say the same about the RIFT which has been in the works much longer then the Vive and the controllers that are coming out in the summer feel more natural to use. But to be honest the only big difference between them are the games coming out and there is a lot more games coming out for the RIFT then the Vive. The makers of the Oculus Rift are refusing to sell jump scare games on the store which I agree with since it could really do some harm to some people.
And we cant forget the Playstation VR which to be honest has nothing compare to Vive and Rift but hey Hatsune Miku VR with it.
The prices are another big thing
Playstation VR: Around 300euro
Vive: close to 1,000euro
Rift: close to 800euro not including controllers which would cost another 200 so around the same price as vive
And as for Anime games Hatsune Miku is the only one I know atm for Playstation VR but I know IBM are making a Sword Art Online MMO for VR