I haven't looked at MFP's strength training tracker lately, maybe it's improved but really doesn't seem suited for tracking strength gains.
What do you use? Why?
I'm looking for a good set of standard exercises to code from.
Tracking sets and reps.
Various graphs to judge progress
And after going through two phones in quick succession, an online account where the data is stored.
The ability to export that data would be nice as well.