I like the Sony. Mine is the FDR-X3000R. It's lasted me over three years.
My wife bought me a GoPro Black Edition one Christmas that had the screen die just out of warranty (6 months?) They couldn't repair it. Best they could do was a 10% discount on a new one. I had used it twice. Seemed like too much money for what it did.
The new Sony is the HDR series. I prefer the form factor for mounting on a helmet or a tripod. It uses standard camera threaded mounts.
The stabilization that Sony has achieved is amazing. Sometimes it makes a rough trail look too smooth!