iPhone fitness app needed

[CDNSushi]

Hey gang. Since I've started training for the zombie apocalypse, one of my favourite workout tools has become my new iPhone. When I was still using my Nokia E63, I had a killer app for it that would do everything I wanted it to, and more! The choice for apps was slim, so I was glad (and lucky) that I had such a good app.

Well now, the floodgates are open and thousands of two-bit developers the wide world over are out for my two bits. There's FAR more choice for iPhone apps than there were for my Nokia, so I really don't know where to start.

I am looking for an app that will be able to do the following:

- allow me to choose between different activities (cycling, running, walking, hiking, etc)
- Use GPS to map my workout (preferably using Google Maps)
- Integrate iPod controls
- allow me to geotag photos I took during my workout
- allow me to send my workouts to a social network (a dedicated social network -- one with a high user base would be nice, and also preferable to Facebook...)
- have expansion ability to incorporate pedometers and/or heart rate monitors (like Nike+)
- take into account personal stats (height, weight, age, etc) for accurate calculation of results (like burned calories, etc).

So far, I have monkeyed around with: iMapMyRun, iMapMyRide, RunKeeper, Endomondo, and runstastic. Seems like buying the pro version of RunKeeper would be the best investment, but I'm not sure.

Anyone have any favourites? Good/bad experiences? Thoughts? Advice?

[Sp`ange]

GPSed is what I use on my Blackberry for hiking and the like. No personal stats tracking, but it has everything else.