It's a bit ridiculous that there is a question about whether Hamilton is talented or not. Let's remember that he's already
- 2nd in all time wins
- 2nd in pole positions (and only 1 from being tied for 1st)
- Is a triple world champion
- Has had a win in every season he's competed (and not all of them were in the best car)
Obviously there are more accolades that could be tacked on there. And for all those that want to use the "well there are more races now" argument, you will see that his percentages are also quite impressive. Mind you he's only 32, so he still potentially has at least a few more years in his prime.
Now, about his "attitude" which people like to complain about. Yes, he is a confident guy and it shows. Part of his skill comes from his confidence in himself and his abilities (for the opposite effect, please see Kvyat). At times he is upset about missing an opportunity to win. This is a quality that makes other champions "great" but is somehow is unacceptable for Lewis. Fans complain that current F1 drivers are too sterile/boring, but criticize Hamilton for having personality. He can be emotional and has both highs and lows. (Was there anyone more moody/brooding than Senna?) He also has a bit of a mean streak when it comes to strategic calls. He knows the rules and will take them to the edge if needed to win (like just about every other F1 winner ever). Now step back and think about all the things your untouchable idols were involved in during their careers. (Crashing into people on purpose? Driving a car with illegal suspension and/or launch systems? Using (or ignoring) team orders to stage a victory?)
In terms of his personal life, he likes to hang out with supermodels and have fun sometimes. (No one really complained when that was David Coulthard. James Hunt is revered for way worse behavior). It hasn't affected his performance on track, given the amount of success he's had in the past 4 years in particular - best car or otherwise. He also seems pretty serious to me. He's paying physiotherapist Angela Cullen to follow him around everywhere as part of his preparation.
"Losing to Rosberg..." Rosberg is not an untalented driver, though certainly not as talented as Hamilton. Let's not forget how much luck can be involved in racing. That being said, Rosberg had the best season of his career and was able to take advantage of the huge disparity created by Hamilton's engine unreliability. No one is blaming Alonso for being on like his 12th KERS component, so why was Hamilton being blamed?
Finally, the car... no one will argue that the champions are usually in the best car. "Best" is a combination of speed and reliability of course. Schumacher, Senna, Vettel, Prost, etc. all benefitted from being in the best car at the right time. Their talent isn't being questioned. So if you want to put a "50/50" for Hamilton I'm okay with it as long as you're consistent. For me this poll was a resounding "no," but more than anything I was taken aback that it even deserves a poll. I think a more tasteful approach would have been to mention Hamilton as a potential example, but then generally ask if people think the F1 greats were created by their car's performance