A11 CTLR EXPRESSED CONCERNS REGARDING TECHNIQUES USED BY FELLOW CTLR THAT FREQUENTLY RELIES ON VISUAL SEPARATION TO RESOLVE CONFLICTIONS.

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I WAS PLUGGED IN; MONITORING N RADAR; AWAITING A POS BRIEF TO OPEN HDOF. WHILE THE BRIEF DRAGGED ON; THE RADAR CTLR FAILED TO NOTICE A HEAD-ON DEVELOPING. N RADAR HAD A DEPARTING HVY B747 ON THE KNIK SID; CLBING ON A GND TRACK ABOUT 20 DEGS W OF THE NORMAL GND TRACK DUE TO WIND. THE CTLR FAILED TO PROJECT THIS ACFT WOULD CONFLICT WITH A DSNDING B737. CTLR WAS VECTORING TOWARD L BASE FOR RWY 7R. THE 2 ACFT ENDED UP NOSE-TO-NOSE; 5 MI APART AND THE CONFLICT ALERT GOING OFF. ABOUT MIDWAY THROUGH THE BRIEF; THE LCL CTLR UPSTAIRS WATCHING THE D-BRITE RECOGNIZED THE NOSE-TO-NOSE CONFLICT AND ATTEMPTED TO ALERT THE RADAR CTLR. UPON BUZZING IN; THE LCL CTLR HEARD RADAR ISSUING TURNS TO THE ASSOCIATED ACFT AND FIGURED THE SITUATION WAS BEING HANDLED. HOWEVER; THE RADAR CTLR ONLY REALIZED THE PENDING SITUATION MOMENTS BEFORE THE CONFLICT ALERT ALERTED. THE RADAR CTLR ISSUED A 180 DEG HDG TO THE SEBOUND ARR; AND A R TURN OF 040 DEGS TO THE NWBOUND DEP. THIS WAS TOO LITTLE; TOO LATE. THE RADAR CTLR BEGAN ISSUING TFC TO THE INVOLVED ACFT AS THE CONFLICT ALERT WAS GOING OFF. THE DSNDING B737 RPTED THE OPPOSING B747 IN SIGHT AND THE CTLR TOLD HIM TO MAINTAIN VISUAL SEPARATION FROM THAT TFC. HAD THE PLT OF THE B737 NOT RPTED TFC IN SIGHT; THIS CTLR WOULD BE DECERTIFIED. THE B747 NEVER CALLED TFC IN SIGHT. THIS RADAR CTLR ROUTINELY FAILS TO PROTECT THE CLBOUT CORRIDOR. THE CTLR DOES THIS BY RUNNING ARR TFC TOO CLOSE TO THE ARPT ON TOO TIGHT A VECTOR; PUTTING THEM DIRECTLY IN CONFLICT WITH CLBOUT TFC. ALSO; THE CTLR'S BRIEFINGS ARE TOO VERBOSE; WASTING TOO MUCH TIME COVERING REDUNDANT OR NON-APPLICABLE ITEMS WHILE DIRE AND PRESSING ITEMS LIKE SEPARATING ACFT GO UNATTENDED! THIS RADAR CTLR DOES NOT ACT ON CORRECTIVE SUGGESTIONS FROM PEERS; NOR LEARN FROM MISTAKES! 20 MINS LATER; THE CTLR WAS DOING THE SAME THING AGAIN AND I HAD TO TELL THE CTLR (AS HDOF) TO FIX THE SITUATION WITH A TURN. THIS CTLR'S PERCEPTION THAT THEY CAN RELY ON VISUAL SEPARATION TO SOLVE POOR VECTORING TECHNIQUES IS DANGEROUS. OTHER CTLRS AND I HAVE POINTED OUT THAT THE CTLR SHOULD RUN THE ARR FEEDS FROM TAGER FURTHER TO THE W FOR 2 REASONS: FIRST AND FOREMOST; TO REMAIN CLR OF THE CLBOUT CORRIDOR. SECONDLY; THE WIDER FEED ALLOWS FINAL RADAR TO BLEND THAT TFC WITH TFC FROM THE S MORE EFFECTIVELY; INSTEAD OF 'JAMMING' THE FINAL CTLR WITH ACFT TOO CLOSE TO THE FAF. INVESTIGATION OF THIS MATTER CONCLUDED IT WAS SLOPPY; BUT SEPARATION WAS MAINTAINED. I NEITHER CONTRIBUTED TO THE PROB AT HAND NOR THE SOLUTION AS I WAS A SPECTATOR; NOT SIGNED ON OR GIVEN TFC YET.