Board Thread:General Discussion v2.0/@comment-26347196-20151109173852/@comment-26214077-20160117030050

Sans is definitely the hardest

Flowey has a great shock value

But Asriel is my fav. Its an awesome fight that toys with your emotions as well.

Also, this the strength order from weakest to strongest (in my opinion)

Sans, Omega Flowey, Asriel