Ooh.. nice cannons!
iPhone5s make great cameras if you're not overly concerned about image quality. I'll put their photos up against my old 35mm point and shoot any day.
The only real downside is you have the same weaknesses with point and shoots - lack of zooming, wide angle issues, that sort of thing (yeah I know you can digital zoom but it's not quite the same thing)
Now personally, I'll take my Canon 6D on a black rapid strap. At home, when I'm going to King's Island I'll either stick with my iPhone or take my old Canon Elph because I'm always doing water rides or roller coasters. (and anymore I question if taking the canon elph is really worthwhile).
However you are forbidden from using an iPad to take photos.
I have spoken!