Active World Champions

Considering one world champ per year for each event, surprisingly not many active world champions (including Olympics)

MS:

Lin Dan (06, 07, 08, 09, 11, 12, 13) 7 times
Chen Jin (10) 1 time
Chen Long (14) 1 time

Note:
(1) Lin Dan got 7 times world champs! Phenomenal ! This record can hardly be better except by Lin Dan himself!
(2) All Chinese
(3) Lee ChongWei might be the closest to the WC, here're his records:
2006: LCW lost to Bao CL (QF)......... Champion: Lin Dan
2007: LCW lost to Sony (3rd Round). Champion: Lin Dan
2008: LCW lost to Lin Dan (Final)..... Champion: Lin Dan
2009: LCW lost to Sony (QF)........... Champion: Lin Dan
2010: LCW lost to Taufik (QF)......... Champion: Chen Jin
2011: LCW lost to Lin Dan (Final)..... Champion: Lin Dan
2012: LCW lost to Lin Dan (Final)..... Champion: Lin Dan
2013: LCW lost to Lin Dan (Final)...... Champion: Lin Dan
2014: LCW lost to Chen Long (Final). Champion: Chen Long
Amazing Lee Chong Wei, always entered final after 2011 !
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WS:

Wang Yihan (11) 1 time
Li Xuerui (12) 1 time
Inthanon (13) 1 time
Marin (14) 1 time

Note:
(1) Unexpectedly, most past world champions have been retired,
Xie Xingfang (05, 06) , Zhu Lin (07) , Zhang Ning (08), Lu Lan ( 09 ), Wang Lin ( 10) all those Chinese champions retired.
Xie XF's husband Lin Dan ( the same year world champion) still playing
(2) The WS champion seems to be the most unpredictable
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MD:

Cai Yun (06, 09, 10, 11, 12) 5 times
Fu Haifeng (06, 09, 10, 11, 12) 5 times
Setiawan (07, 08, 13) 3 times
M Kido (07, 08) 2 times
M Ahsan (13) 1 time
Ko Sunghyun (14) 1 time
Shin Baekcheol (14) 1 time

Note:
(1) Cai Yun/Fu HF dominates
(2) Where's Lee YD ? the highly regarded the most talented MD player without any championship ring.
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WD:

Yu Yang (08, 10, 11, 13) 4 times
Du Jing (08, 10) 2 times
Wang Xiaoli (11, 13) 2 times
Zhao Yunlei (12, 14) 2 times
Tian Qing (12, 14) 2 times

Note:
(1) All Chinese
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XD:

Lilyana Natsir (05, 07, 13) 3 times
Zhang Nan (11, 12, 14) 3 times
Zhao Yunlei (11, 12, 14) 3 times
K R Juhl (09) 1 time
Lee Yongdae (08) 1 time
Tontowi Ahmad (13) 1 time

Note:
(1) Amazing Natsir leading in the list with ZN and ZYL.
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Correct me if I'm wrong.