In reply to IainRUK:
> Strava.. better community, probably the worlds best ambassadors… but generally a nice friendly program..
Basically what Iain said - another vote for Strava. There's also something that doesn't sit well with me about Nike running the fitness app. Seems too tied in to the stuff they want to sell you (foot pods and all that guff). I don't have any real experience of it though. Also I don't own much Nike gear save for the odd running vest or socks, and don't go in for all the step counting/activity tracker stuff.
I've been on Strava for a couple of years and before that used Garmin Connect which has definitely improved over the years. The best thing though was I was able to import all my old data into Strava (and now Garmin Connect syncs automatically with Strava so your runs are in two places).