i love my S4 GT=I9500, still.
i like S4 a lot than S5, especially the black edition, i don't know if there are still available this year.
Samsungs generic-category flagships were mostly improved along the Active/XCOVER line. Honestly, before losing my S3, I wish I had the S3 Active or any Xcover at the time since my Zune was dying. :/