AN A300 FLT CREW IS CONCERNED ABOUT HOW CLOSE A B727 PULLED UP BEHIND A C208.

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AS I TAXIED S ON TXWY C1; IT WAS NECESSARY TO MAKE A R 90 DEG TURN; HDG W ON TXWY C. HALFWAY THROUGH THE TURN; I WAS POINTED DIRECTLY AT A LINE-UP OF ACFT OF MANY TYPES. WHAT CAUGHT MY IMMEDIATE ATTN WAS AN ACR Y B727 WHO HAD TAXIED NO MORE THAN 1 AIRPLANE LENGTH BEHIND A C208 CARGO ACFT. BY 1 ACFT LENGTH; I MEAN A C208 LENGTH; NOT A B727 LENGTH. I STOPPED ACFT MOVEMENT; ASKED THE FO TO NOTE THE VERY CLOSE POS OF THE B727 TO 'OUR' C208. HE EXPRESSED SURPRISE AND CONCERN TO THE CLOSENESS OF THE B727. WE AGREED THAT THE AGGRESSIVE NATURE OF THE B727 CREW WAS TOTALLY OUT OF CHARACTER FOR A PROFESSIONAL CREW. THEN; AS WE WATCHED; DUMBFOUNDED; THE B727 MOVED UP TO ABOUT 1/2 A C208 LENGTH BEHIND THE ACR Z CESSNA. I FLASHED MY LNDG LIGHTS AT THE B727; WHO WAS NOT 150 FT FROM ME; JUST E OF THE C2 INTXN; ON TXWY B. THE ACR Y B727 STOPPED. THE LINE-UP ON TXWY B HAD AN ACR ZZ; B737; FOLLOWED BY THE ACR Z; C208; FOLLOWED BY THE B727. THERE WERE ABOUT 6 ACFT IN FRONT OF ACR ZZ WAITING FOR DEP. THE ACR Z CESSNA WAS HOLDING A SAFE DISTANCE BEHIND ACR ZZ IN ORDER TO AVOID JET BLAST FROM THE B737. I DID NOT SEE ANY EXCESSIVE DISTANCE BTWN THE CESSNA AND THE B737. PERHAPS ACR Y DID NOT SEE IT THIS WAY. INTERESTINGLY; A YELLOW TRUCK WAS POSITIONED AT THE SE CORNER OF THE 'HOLD PAD' AND COULD HAVE SEEN THIS SIT. HE WAS TO MY ACFT'S R DURING MY STOP AND OUR VIEWING OF THIS DEVELOPMENT. THE REASON FOR THIS RPT WAS TO DOCUMENT AN AGGRESSIVE AND UNPROFESSIONAL OP OF AN ACFT IN GND OPS.