Chill out dm, his Q2 time was 1.5 tenths off Hamilton's Q3.
Don't think anyone genuinely thinks Button is faster over a single lap than Hamilton.
Q2 is somewhat as irrelevant as practice, and Q1, Q3 is the ONLY time the top drivers try their absolute best. Vettel, Hamilton, and anyone whose car is particularly good that week(Ferrari at other races, Force India here), put in a banker lap.
Sometimes Button beats Hamilton in Q1/q2, sometimes Hamilton beats Button, sometimes the difference is big, sometimes its small, Q3 almost always plays out the same way. Look at the first three races of the season, Button probably was ahead in Q1/2 more than Hamilton was, but Hamilton beat him in Q3 each time, actually very close early season but by 6/10th's in China, and consistently in Q3 since. Q1/2 times don't mean much of anything.
Case in point, Vettel was 1/10th down on Grosjean in Q2, and half a second faster in Q3. Q1 is about getting to Q2, Q2 about getting to Q3, and Q3 is the only time anyone goes purely for the fastest lap they can do. Lastly, think about who is messing their tyres up most in the race, and who is killing himself to do better times in Q1/2, Button. Hamilton takes Q1/2 relatively easy, Button goes flat out and who has the most worn tyres going into the race? Hamilton and Vettel go fast in their final run of Q3, and quite often Hamilton uses his Q2 sets of softs in the first run in Q3, which is why his second run is usually significantly faster on new rubber, which is why I knew going into the final runs Hamilton would jump almost half a second on his first run time as he does it at almost every single race. Vettel just saves his tyres and does a single run, on the freshest rubber when the track is the fastest(as late as possible assuming its not about to rain or something).
Some of Button's tyre damage is doing laps on the brink. Qualifying vs race pace is 4-5 seconds off this season with people saving tyres, the guys killing tyres by going all out in Q1/q2 have worse harder compound tyres in the race.
Sunama, I do wonder if Vettel/Hamilton will play out like Canada, Vettel got pole but didn't have the same race pace. I think Hamilton has consistently since the first couple races being unable to put poles into wins, he actually said that was an issue, setting up too much for qualifying and not having the raw pace in races. He turned that around and hasn't been as absolutely dominating in qualifying as he started the season but their race pace has improved overall(then mistakes screwed him mercilessly).
THing is if you have the race pace to win its not worth killing yourself to get pole, if you don't have the best race pace, starting first instead of 5th can have a huge effect.