QUICK VERDICT
Different purposes — most serious cyclists use both. Strava for social + routes. TrainingPeaks for plans + analytics. One pick: Strava if self-coached, TrainingPeaks if coached.
CHOOSE STRAVA IF
CHOOSE TRAININGPEAKS IF
RELATED COMPARISONS
Full article
The long-form piece that backs this comparison.
Zone 2 Not Working? The Context Nobody Gives You
Three Peaks Cyclocross Training Guide: How to Prepare for the Yorkshire Dales