If she's using it for basic runs and daily tracking then the Tom Tom Spark is a great watch. The music and headphones make an excellent package and there are other nice motivation features, like virtual racer (as opposed to virtual pacer) which you'll only find in the 6xx and higher Garmins. Where Garmin really jumps ahead of the pack is the custom apps that can be installed for free from their 'store'. The customised running screens, pacers, etc. make it a much more runner oriented watch. Note that you can't customise your data screens at all on the Tom Tom. However, the Connect IQ (the custom installable apps) feature isn't available on the FR35 as far as I'm aware. I've found that the Garmin and the Tom Tom are pretty close in terms off around 10 hour activity recording battery life. You'll maximise it by turning off Bluetooth and even more so if you turn off HR. Both watches can synch to Strava automatically and both are recognised by Discovery Vitality, if you use it. I don't know anything about Fitbit so can't comment on that. So out of the watches you mentioned I personally think the Tom Tom offers more at better value. From the FR235 and up, however, Garmin is streets ahead. My watch to wait for will be the Garmin 645. It looks like everything I've loved about my 235 but with the features I'm jealous of, like music, waypoints and Strava Live.
