The nature of the pictures are affecting though. I'd say A looks like a nicer guy which is always attractive but B has more conventionally attractive aesthetics but for me
I fear I'm over complicating this but; aesthetically guy A has better physical appearance (bone structure, hair etc) , however I would go for Guy B.... Because A seems to like taking selfies of himself whereas in B its pictures taken by others that seemed hard to source. Plus he seems more relaxed and friendly - I'd been intimated by Guy A.