Quote: Problem is that Pentax has not released any sports-and-wildlife oriented long lenses that could fulfill the K-3 AF and FPS capabilities. Poor customer service in its truest sense.
I guess you could also say, Canon to date hasn't released a sensor with the Dynamic Range of a K-5. With DxO sensor rating system for landscape the highest rated Canon sensor is the 6D rated in 100th place at 12.1 EV. That's not on par with a K-x. So we can expect another sub-par offering from Canon based on past performance, where their current technology compares unfavourably to the camera I gave away to my daughter in law and that we stopped using over 2 years ago. I can't describe to you what it was like for a mostly landscape shooter to go from a K-x to a K-5 and I similarly couldn't imagine what it would be like to go from a K-3 to a 6D, Canon's best. So you make do, with what you don't do as much with to get what is really important, in a one camera system.
If you can buy a camera fr each of the different things you do and carry them all with you then sure, you might buy a camera just for fast AF. But it's far from the only criteria, and what has been impressive with Pentax's offerings since the K-5 is dynamic range.
It's incredible that Canon can offer a Full Frame Camera, that's almost a full EV behind a camera that can be had for $300, at more than 5 times the price, and it's their best. That's just inexcusable.
And those are ratings done where Pentax is weakest, in low light. Imagine what those curves would look like done in good light.
So yes Canon has some advantage, just for most Pentax users, the choice is slower AF but better rendition. Now having made that choice and being OK with it overall, I'm not sure why a Pentax shooter would all the sudden change his or her stripes. and suddenly opt for faster AF. Canon has always had faster AF. It's not like it happened yesterday. So it's probably pretty easy to say, AF speed was not the reason Pentax shooters bought their cameras, and it's not likely to be the reason they switch.
Canon may have set the AF standard, but there are lot's of standards. And Canon lags behind for landscape shooters (coming in with the 6D at 100th place.For low ISO , what DxO calls sports, Canon has a #10 placement. Now I'm not saying that I give any credence or really care about DxO or what it does or what it measures. Personally I find them irritating. But, they do make the point that a system cannot be judged on just one aspect of it's performance. For me it's all about IQ, and trading AF speed for Dynmaic Range is just unacceptable. That's why as much as I'd love to have faster AF, it wold hurt my photography to go to a Canon product. It might be harder to get that image, but once you have it, you have a better image with Pentax. If I'm looking FF right now, I'm looking A7r with a Pentax adapter. Something that will let my improve my Dynamic Range...and ranked right behind a Canon 1Dx overall, with much better Dynamic Range and Low Light performance. If you like your Pentax, that's what you should be looking at.
I you don't like your Pentax, maybe go buy a Canon if AF is everything for you.