Don't really see in the hype in Hamilton vs. Rosberg and JB vs. Perez...
JB (should) hammer Checo due to his experience and knowing the team, Perez has some moments where he looked good last year but also some where he looked weak.
Lewis will SMASH Rosberg in quali (as he does with every teammate) and should be able to use that as a springboard to beat him in the races.
Anyone is free to write this down, take a picture and send it to me IF I'm wrong.
I'm not so sure about Hamilton smashing Rosberg in qualifying, i read a piece on here a few days ago that when they were teammates in karting for 2 years speedwise they were very similar but Hamilton beat Rosberg due to being more aggressive in the races.
Apart from his rookie season Rosberg has shown himself to be one of the best qualifiers in F1, this was shown to good effect against Schumacher, so i feel one area the two of them will be close is in qualifying.
I'm open to being wrong, I just think extracting one lap pace from a car is a skill Lewis has really honed over the years, I can see it maybe being 15-5 in his favour.