Ive also had both.
iPhone= very good straight out of the box, good for people who don't want to change anything, crap if you want to use it in a way Apple didn't intend, crap if you don't have everything Apple, ie doesn't talk to non Apple stuff easily, also iTunes is the most farked up retarded piece of software I have ever used. Pre latest one, just too small for old farts like me.
Galaxy S5= really like the size, good for viewing pictures, not as good out of the box as the iPhone but can configure. Acting as just a regular USB storage device makes life easy (no iTunes)
Score, gotta say close to 50/50, they both have strong and weak points, but do most things well, bit Ford vs Holden in a lot of ways...
(p.s. i still hate Apple fanbois)