2 ACFT FLYING VISUAL APCHS TO PARALLEL RWYS RECEIVE TCASII RA'S. ONE COMPLIES WITH TCASII AND THE OTHER CONTINUES HIS APCH.

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CLRED FOR SIMULTANEOUS VISUAL APCHS TO OUR RESPECTIVE RWYS. WE ACKNOWLEDGED SEEING ACR B. WE DON'T RECALL IF HE ACKNOWLEDGED SEEING US. ABOUT 5 MI ON FINAL; APPROX 2000 MSL; WE RECEIVED A 'DSND; XING; DSND.' RA CAUSED BY ACR B AT OUR 2 O'CLOCK; INDICATING ABOUT 200 FT BELOW US AND CLBING. WE KNEW HE WAS THE CAUSE OF THE RA (WE WERE EXPECTING IT TO HAPPEN) AND SAFELY COMPLETED OUR APCH. ACR B WENT AROUND BECAUSE HE SAID HE HAD A 'CLB' RA FOR AN UNKNOWN ACFT 200 FT BELOW HIM. WHEN HE MADE THAT STATEMENT WE WERE; IN FACT; 200 FT BELOW HIS ALT BECAUSE HE WAS GOING AROUND; BUT THE RA STARTED WITH US 200 FT ABOVE HIS ALT. I WAS IMPRESSED WITH HOW TCASII COORDINATED OUR 'DSND; XING; DSND' WITH HIS 'CLB.' THE SCENARIO WAS WELL ORCHESTRATED BY ATC WITH GOOD TA'S. I SAW NO COMPROMISES TO SAFETY. I BELIEVE ACR B COULD HAVE PREVENTED HIS GAR IF HE HAD KEPT TRACK OF US ON HIS SCOPE AS WE PROGRESSED FROM PROX THROUGH TA AND RA. HAVING LOST TRACK/AWARENESS OF OUR POS; THOUGH; HIS RESPONSE WAS APPROPRIATE. I THINK WE; AS PLTS; NEED MORE GUIDANCE ON TCASII USE DURING SIMULTANEOUS VISUAL APCHS; SUCH AS TA ONLY; IGNORE THE ANTICIPATED RA; ETC.