Explain Plan Question

Here are two results from Explain plan. Does anyone know the exact meanings of the rows? Which format of the query is the "best"?

---> QUERY 1

SELECT wcClli, houseNoPart1, suffix, houseNoPart2, houseNoPart3, prinumad.houseNoType, elevType, elevId, structType, structId, unitType, unitId, SvcLoc.objectId
FROM StrRng, PriNumAd, SvcLoc
where
svcloc.prinumaddr_objectid = prinumad.objectid AND prinumad.strrng_objectid = strrng.objectid AND strrng.objectid = 2628

Rows Execution Plan

-------  ---------------------------------------------------
      0  SELECT STATEMENT   GOAL: RULE
     47   NESTED LOOPS
     29    NESTED LOOPS
      1     TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'STRRNG'
      1      INDEX   GOAL: ANALYZED (UNIQUE SCAN) OF 'PK_006_STRRNG' 
                 (UNIQUE)
     29     TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'PRINUMAD'
     30      INDEX   GOAL: ANALYZED (RANGE SCAN) OF 'AK_033_PRINUMAD' 
                 (UNIQUE)
     47    TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'SVCLOC'
     76     INDEX   GOAL: ANALYZED (RANGE SCAN) OF 'AK_044_SVCLOC' 
                (UNIQUE)

---> QUERY 2
SELECT wcClli, houseNoPart1, suffix, houseNoPart2, houseNoPart3, prinumad.houseNoType, elevType, elevId, structType, structId, unitType, unitId, SvcLoc.objectId
FROM StrRng, PriNumAd, SvcLoc
where
PriNumAd.strRng_objectid = 2628 AND
SvcLoc.priNumAddr_objectId = PriNumAd.objectId AND StrRng.objectId = PriNumAd.strRng_objectId

Rows Execution Plan

-------  ---------------------------------------------------
      0  SELECT STATEMENT   GOAL: RULE
     47   NESTED LOOPS
     29    NESTED LOOPS
     29     TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'PRINUMAD'
     30      INDEX   GOAL: ANALYZED (RANGE SCAN) OF 'AK_033_PRINUMAD' 
                 (UNIQUE)
     29     TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'STRRNG'
     29      INDEX   GOAL: ANALYZED (UNIQUE SCAN) OF 'PK_006_STRRNG' 
                 (UNIQUE)
     47    TABLE ACCESS   GOAL: ANALYZED (BY ROWID) OF 'SVCLOC'
     76     INDEX   GOAL: ANALYZED (RANGE SCAN) OF 'AK_044_SVCLOC' 
                (UNIQUE)