the new imovie fucks my quality. is there a way to upload it at higher resolution. There is a clear difference between watching the gopro mp4 files and watching the clips once I have uploaded to iMovie
on mac honestly newest imovie. compatible very well with mp4's and compatible with the 60fps unlike the old imovies
FCE Sucks because its uncompatible with MP4 so you have to convert and render a lot.
If you're experienced you still might want to use FCE though
On my PC I use MPEG stream => http://www.squared5.com/ for pre-editing(trimming and converting) my gopro footage before importing into premier. For a cheap & easy solution Windows Movie Maker Live can also edit HD footage.