I guess I'll have to disagree about JVC.
For the past 5 years, I've shot using a JVC-550U with a JVC TM-910SU field monitor, edited using either a JVC SR-VS20U or a JVC BR-DV3000U player/recorder and colour-corrected on a JVC TMH-150CGU.
Not a single complaint on any piece of gear :-)
I am a little surprised though that there does not seem to be any 1080/60p ability here.
Might be limited by the technical solutions. You have 30p at 35M/s which should be decent quality, but your files are getting pretty large. 60p at the same quality would double the file size/halve the amount of video. You are running into both bandwidth and storage issues at that point.
That is what the marketing material says, but I am not quite sure what it means. When the HD6 records video it records it interlaced, I assume this is 60i, which would be the same as 30p. It can then be output through the HDMI as 60p, but if it is stored interlaced, this would mean that JVC de-interlaces and then doubles up the frames or something like that. i don't know really. Whatever it does it sounds a little iffy (as vis a vis their marketing claim) and the test results seems to back up the "iffy" part since picture quality seems to be worse than the Canon HV-20/30 family of camcorders.
Oh, and when I say "record" above I mean that it seems to come off the sensors at 60p, but it is laid down on the HD as interlaced. I am assuming this is 60i, meaning there is a quality loss in the conversion.