Well I've been mucking around with the data.
And came up with (a probably meaningless) stat that calculates the odds that when you post an answer it becomes accepted. Unfortunately there seems to be no way to filter out community wiki stuff (Jeff let me know this will be in the next dump). So that is mixed in.
For me when I post an answer about 21% percent of the time it will get accepted. The person with the highest ratio, is not Jon Skeet :) The prize goes to rq, who 73% of the time posts the accepted answer to a question. (I excluded people with less than 1000 reputation.)
Top 16 are:
rq 4596 33 45 0.733333333 http://quirkygba.blogspot.com
Daniel LeCheminant 62055 113 189 0.597883598
NULL 17637 16 27 0.592592593 NULL
Jb Evain 36702 19 34 0.558823529 http://evain.net/blog/
Todd White 30833 16 29 0.551724138 http://code.logos.com
Rafael 80720 24 44 0.545454545 http://kukawski.pl
Eric Rosenberger 41624 30 56 0.535714286
Paolo Bergantino 16417 350 679 0.515463918 http://www.rootspot.com
Alex Koshelev 19772 17 33 0.515151515 http://webnewage.org/
Ben Gottlieb 6694 108 212 0.509433962 http://www.standalone.com
JeniT 6739 11 22 0.5 http://www.jenitennison.com/
Bittercoder 4843 18 36 0.5 http://blog.bittercoder.com
John Siracusa 164 19 38 0.5 http://arstechnica.com/staff/fatbits/
Ayman 40005 76 152 0.5 http://aymanh.com
Gdeglin 83491 33 66 0.5 http://www.inigral.com
Miles 64474 34 68 0.5
select OwnerUserId, case
when exists (select 1 from Posts p2 where p.ParentId = p2.Id and p2.AcceptedAnswerId = p.Id) then 1
else 0
end as ItsRight
into #t
from Posts p
where PostTypeId = 2
select OwnerUserId, sum(ItsRight) as [Accepted Answers], count(*) as [Total Answers],
(cast (sum(ItsRight) as float) / cast(count(*) as float)) as Ratio
into #UserRatios
from #t
group by OwnerUserId
having sum(ItsRight) > 0 and count(*) > 20
order by cast (sum(ItsRight) as float) / cast(count(*) as float) desc
select DisplayName, r.*, WebsiteUrl, Reputation from #UserRatios r
join Users on Id = OwnerUserId
where Reputation > 1000
order by Ratio desc
