Toothpick glider kid
It all depends on what battery you can fit inside of there and how heavy you want to make it. If you are looking to make it as light as possible go with the cheap hobbyking one so you can use a smaller battery and still get decent flight times. If you want speed and can fit a larger battery then go for the FMS one. Also take into account if the model would be too under powered with the Hobbyking set up when fully loaded up, if this doesn't apply then just ignore this. Take this all with a grain of salt though because I've never messed around with EDF's before so I'm just using my general knowledge of prop planes to make this assumption.