So... having different battles, up and down the grid, is more entertaining
than having more drivers fighting for the podium? 
For the time being there's going to be one podium position open, unless one or both of the silver arrows falters, crashes or DNFs. So you're only going to have room for small group of contenders vying for that third step.
Exactly! I should have worded that differently, and been less political about it!!
But, the question remains, IF you're not a Mercedes fan, just how entertaining is
it going to be, if it's just Hamilton and Rosberg fighting for 1st and 2nd and only
3rd being "open"? Sure, I will admit the racing on Sunday was quite exciting; but,
how long will it be before it wears thin on the nerves, again IF you're not a Mercedes
fan? After all, we were all quite peeved that it was usually Vettel at Red Bull winning,
the last few years with the rest of the pack left to work for the two bottom steps.
I think you're answering your own question here. It had been only Vettel. Sunday was both Hamilton and Nico. I think there's enough there to keep everyone engaged. The Hamilton fans of course and those that don't think very highly of him. 
I kid though. Force India, Williams, Red Bull and McLaren all fighting for a podium is pretty exciting stuff. I know that if Ferrari was contending, it wouldn't even cross your mind but give it time. There's a test tomorrow and teams don't usually find their groove foe the season until the first wave of flyaways are over.
To be honest with you, I wasn't watching F1 when Ferrari was dominant in the sport!
I have read about it and heard about it; but, I wasn't "there". Having said that, all I
would like is for the cars to be
more evenly matched. Last year, all we heard about
was how Red Bull was "cheating" because they had a 2-second car; yet, there hasn't
been anyone saying anything negative about the 3-second car that Hamilton was in
on Sunday. Now, you'll have to forgive me when I say, I see very little difference in
the two situations.
Your response will obviously be that it's because I'm a Ferrari fan and that might be
true, to some extent; but, in reality, what's the point of having a racing series when
all you have at the front is the one team? And, saying that Ferrari had their turn and
now it's Mercedes' turn really does not make it any more acceptable.