I like my H3 black, and my ONLY complaint is the battery life sucks. If the battery life is the same between all three... then it is down to the specs. The main reason I got the black was for the 120 fps at 720p, which is really nice for some HD slowmo shots but I really don't get enough use from it.
We will see though. If I was on the mountain all season like I was 2 years ago, I'd probably get full use from all the features but now, at 40ish days per season, I'm more concerned with just riding than filming.
As for the computer argument, my 2011 MBP has been able to handle everything the black can do. It helps to have it plugged in and the fans definitely start to buzz, but it handles it fine.