Wait for note 4. but out of them two I would go s5 only cause its a little newer.
Galaxy S3 form factor + Galaxy S5 specs would be awesome.Its really personal preference on this one. I say if the size of the note doesn't bother you than go with the note. The extra gig of ram will be more important to its performance a few years down the road than the slight difference in processor speed. I have an S5 and am happy with my decision because I like that I can pocket this phone easily. I actually like the S3 better than the S5 because it is so much more comfortable on the hand but the specs on the S5 blow the S3 out of the water.
Galaxy S3 form factor + Galaxy S5 specs would be awesome.