There wasn't really a worst. Betting Line had more winners than anyone else and more that won over ten grand than anyone else. Miki had 4 top enders but after that not much else. JK Endofanera and Racing Hill didn't get the quality mares but they weren't too bad.
Here's the data as of today for top 20 for each sire
BETTING LINE (p)(119)
ABUCKABETT HANOVER (c) ALL TUCKED UP 1:50.3s WBSBS $180,410
LET ER BUCK (f) WILD WEST SHOW 1:53.4f PHL F $102,532
DARBY HANOVER (f) DARENA HANOVER 1:52.4f MEA F $89,666
PAULAS BET HANOVER (f) PAULAS BEST 1:55.1s WBSBS $73,790
DEAN B HANOVER (g) DELI BEACH 1:52.1s WBSBS $67,601
FULSOME (c) TRIPLE V HANOVER 1:52.1f MEA F $65,432
CAVIART LOTUS (c) LUNAR TIDE Q,1:53.1m M M $46,589
LAZY DAY HANOVER (f) LAZAN HANOVER 1:59.4h BLOM $43,968
RIFLEMAN (c) THIRTY X 1:51.2f PCD F $39,355
NATCHEZ BELLE (f) GRRBY HANOVER 1:54.3f PCD F $36,765
CAVIART SKIPPER (c) CAVIART SYDNEY 1:57.3h WDSTK $34,936
WINNER IS COMING (c) INJEANOUS STYLE 1:51.3m LEX M $31,005
TWIN B EDGE (c) TWIN B EXQUISITE 1:52.4f MEA F $28,225
BATTERUP HANOVER (c) BEACHBUNNY HANOVER 1:54.3f MEA F $26,200
GET ALONG (g) KIT KAT ARTIST 1:55.1f PHL F $23,152
WINNING LINE (c) SHADOWMISTY 1:56.1f PRC F $21,150
BET MINE (c) PLEASANT YET BAD 1:52.3f PHL F $19,532
AMAZING BET (g) AMAZING MARKER 1:55f GEODF $17,960
BETTOR NOT TALK (g) TALK TIME 1:51.2f MEA F $17,600
SOUTHWIND AUSSI (f) A AND GS PRINCESS 2:01.3h BLOM $17,385
TEN MORE OVER 10,000
ALWAYS B MIKI (p)(112)
SOUTHWIND GENDRY (g) GAMBLERS PASSION 1:50m LEX M $409,269
PERFECT STING (c) SHEBESTINGIN 1:49.2m LEX M $304,300
GRACE HILL (f) WESTERN SILK 1:51f PCD F $210,947
ALWAYS A MIKI (c) BEACH GAL 1:51.1f PCD F $138,718
JK ALWAYSBALADY (f) JK SHESALADY 1:52.1f PHL F $66,907
SOUTHWIND MINA (f) R MARIE HANOVER 1:57f PHL F $25,498
MONTEREY JACK (c) KATIE SAID 1:54.1f PCD F $25,123
MIKIBYTHESEASIDE (g) SEASHELL HANOVER 1:55.2f PHL F $24,387
ALWAYS B SWEET (g) SWEET AS SUGAR 1:53.1f PHL F $23,200
ALWAYS B LAUGHIN (f) GRAVITY 1:54.1f PHL F $22,676
LINDYSALWAYSTHINK N (c) THINK PINK 1:55.4f PCD F $14,077
ODDS ON BADD BUNNY (f) OOH SHESA BADLANDS Q,1:56.1m LEX M $13,400
HOT TO CHANNEL (f) CITY DELIGHT 1:55.4f SCD F $12,478
BILLY CLYDE (c) JAN IT JACKSON Q,1:52.3m M M $11,735
AP BLAZE OF GLORY (f) EMILY CAR 1:54.3f PHL F $11,400
TIM MCMIKI (g) DOUKNOWWHEREURGOI N 1:54.1f PRC F $11,246
DONTPASSME HANOVER (g) DONT DENY ME 1:51.3m M M $11,170
FOUR MORE YEARS (c) FABLE Q,1:54.1m M M $10,000
SO MIKI HANOVER (f) STOLLY UP BLUECHIP 1:54f PHL F $9,275
ALWAYSABEACHDAY (f) QUEENSLAND BEACH 1:54.2s WBSBS $8,600
JK ENDOFANERA (p)(88)
JK GOING WEST (g) SOUTHWEST 1:51s HOP S $214,558
WHATS YOUR BEEF (c) KATS TREASURE 1:51.3s HOP S $175,815
SOMETHING TO ME (f) SORCHA BLUESTONE 1:51.4s HOP S $73,830
JK SHES GORDJUS (f) GORDJUS 1:53.3s HOP S $52,242
PBR STREET GANG (c) LOVE YOU ALWAYS 1:52.2s HOP S $43,585
UNCUT GEM (f) STRAIGHT FUEL 1:53.4s HOP S $36,475
HES GONNA GETYA (g) SHES SO HOT Q,2:00.4m SPR M $33,105
TJS INDY PACER (g) LUCKY AMY Q,1:53s HOP S $26,073
MADELINES BLK JACK (g) HONEYS LUCK 1:52.2s HOP S $25,460
MIDNIGHT MOOD (g) LA DIABLA 1:54.3s HOP S $22,155
BRILLIANT BEAUTY (f) TIA MARIA HANOVER 1:54s HOP S $21,649
ODDS ON DEAD HEAT (f) JK OWHATANITE 1:55.1s HOP S $17,285
NICKS MONSTER (g) SHA DELIGHT 1:53.2s HOP S $16,661
MY WISH CAME TRUE (g) ONAWISH HANOVER 1:53.1s HOP S $15,535
MEADOWBROOK LADY (f) LADY LAKERS 1:59.4h CNVR $11,760
MIDNIGHT REBEL (g) YANKEE PANKEE BB Q,1:57.2s HOP S $11,105
FRONTIER NEW MOON (f) MOON RISING 1:54s HOP S $10,780
FOX VALLEY SAMPSON (g) LR DANCING DREAM 1:52.3m LEX M $9,660
JKS SHINING STAR (f) BIKINI STAR 2:00.1m IND M $9,070
BROTHER DICK (g) CAVIART CARA 1:54.2s HOP S $8,850
RACING HILL (p)(93)
WINELLA HANOVER (f) WESTERN DUEL 1:54.4f SCD F $105,188
ODDS ON PICK SIX (c) BEACH PARTY HILL 1:54.2f SCD F $89,663
SHE KNOWS IT ALL (f) CAT CORA 1:54.1h NFLD $63,116
MARGIN OF ERROR (f) MARGIN BLUE CHIP 1:55h NFLD $60,150
PINE GROVE RACER (g) WESTERN ROYALTY 1:53.3f SCD F $50,427
JACKIE MOON (c) HELLO GRIN 1:52.2f MEA F $48,254
DISARONNO HILL (f) BEAUTIFUL HILL 1:54.4f SCD F $35,255
IMMA BE (c) CATCH ME KATIE 2:00.1h MARI $26,340
HEAVENISSOFARAWAY (f) BOOK BABE 1:54.1h NFLD $24,475
HILL YEAH (g) THE HEAT IS ON 1:53.4f SCD F $24,368
RACING MY BEAMER (g) BEAMER 2:05.1h CNFLD $20,199
FILET MIGNON (f) CANADIAN DRAGON 2:01.4h CNFLD $14,404
RACING SOMEWHERE (f) SOMERACESOMEWHERE 2:05h SID $12,585
BABS JANSEN (f) UNSOLVED MYSTERY 1:53m LEX M $12,535
SEASIDE HILL (c) SEBRING BLUE CHIP 2:02.1h LCNT $12,100
SHERYLS SHE SHED (f) MISS MADI M Q,1:58.1f SCD F $11,594
WILDFIRE FLASHER (g) BET YOUR LIFE 2:03.3h LBN $9,750
MO MO (f) TEA POT HANOVER Q,1:59h NFLD $9,735
ROSE RUN WALKER (g) TROPICS BEACHGIRL 2:03h ZANE $9,733
SIDEKICK (g) FRISKIE LIL DEVIL 1:55.3f SCD F $6,643