In the words of a fellow forum member, I want your prescription glasses or some of what you've been smoking...
I am just going by the numbers
Numbers will get you just so far. There comes a point where you have to deploy your eyes and sense for what's actually going on. To say things like
"Started of the year well, now have fallen back to having the 4th best car slightly behind the Lotus."—clearly that is not the case for the past three races. Yes, Lewis did a "Lewis" at the Nurburgring which may not totally be the chassis but look at the upgrades that McLaren brought to Spa. It allowed Button to drive off into the sunset. Lewis then backed up the superior evolution by running away at Monza. And this is now the 4th best chassis as you see it?
Secondly, you said
"Hamilton outperformed his team mate over the year, however the gap between the 2 is closing since the 7th race of the year. Now they are quite close but Hamiltons still has the edge."—by "close," you must mean as friends? Surely you can't be speaking about outright performance. Lewis is doing Button in qualifying (in embarrassing fashion), and in actual racing, if you remove their DNFs, Button hasn't been able to cope in the way that, say, Webber is matching Vettel. Admittedly, Button found grip in 2 races but overall, he isn't really living up to his #1 status, is he?
You also said
"As you expect Alonso is ahead of Massa, but Massa is improving while Alonso is at the same level."—what I have been seeing is something very different on Alonso's part. As Massa finally started to show signs of improvement in recent race meetings, Alonso has also turned it up a notch or two as we get later in the season. That Ferrari is faster but by no means an awesome car to drive. Alonso has risen to the occasion. "At the same level"...I think not.
I could go on but I won't. My point is, the numbers have little validity. Mathematicians will tell you, you can draw any conclusion you want from numbers if you try hard enough.
I'm just saying...