I'm saying it's easy to determine that he's the best right now.
But, no.
Most wins - So you're opinion of him would change drastically if he played for the Mariners you say.
Fewest losses - well that isn't true, and doesn't really matter
Lowest ERA - again, untrue, you are going to say you meant AL, but this thread is about Halladay and you were talking about all pitchers
Most strikeouts - beat out Kershaw by two strikeouts and Kershaw had 18 less IP AND a lower ERA, same amount of losses, that is putting a damper on the easiest to determine thing and he wasn't even one of the guys I mentioned
Great pickoff move - really? Ok, he was 20th out of the 98 pitchers who had 160 IP or more this year in Pitches/SBA. Ian Kennedy was 3rd there, he has a beautiful W/L/ERA too. Then again Felix Hernandez is the 5th worst, not so sure this matters all that much.
Fields well - and others just fall on the ground?
High innings pitched - same reason I think Livan Hernandez was the best back a few years ago
Threw a no-hitter - yeah, unlike that stud Galarraga, blaming the ump for an honest mistake last year, wait how many times has Galarraga been DFA'd in the last year?
Great use of a number of pitches - unlike others who use magic and the like to get guys out
Then it seems you are mostly basing this off one season. That isn't how you determine the best. You can say he was the best pitcher of 2011, which I very well may agree with. Not that he has been bad the past couple years, but it is saying something different. Strasburg pitched 24 innings this year, that doesn't make him a bad pitcher, and if I had a gun to my head I'd pick him for a one game start right now over Verlander I think.
If there was a guy who finished a whisker behind Verlander in every category and was therefore very close to being as good, you would still say that it's clear that Verlander's the best because he's at the top of every category by which you judge being the best.
Well Kershaw seems to fit your criteria, but your criteria for judging a pitcher is very, lets say unique. And because that is how you judge a pitcher doesn't make it right.
If there's a drag race and one car was clocked at 150 m.p.h. while the other was clocked at 148 m.p.h. you would say that one car was clearly faster than the other for that race. That doesn't mean it was a lot faster.
Yes and the car that reached the higher top end speed could have still lost the drag race as the other car could have been quicker, depends on what you are trying to measure. And a difference of 2 mph is quite small, one race doesn't make someone the best, just like one season doesn't make someone the best.
Verlander is without a top 10 pitcher in the league, and even top 5 in my opinion. But there is no way he is clearly a better pitcher than guys mentioned above (ok, he's better than Galarraga and Livan).