SQL Server; Most expensive query record

--DBCC FREESYSTEMCACHE
--DBCC FREEPROCCACHE

SELECT TOP 100 SUBSTRING(qt.TEXT, (qs.statement_start_offset/2)+1,
((CASE qs.statement_end_offset
WHEN -1 THEN DATALENGTH(qt.TEXT)
ELSE qs.statement_end_offset
END - qs.statement_start_offset)/2)+1) Expensive_QUERY,
qs.execution_count,
qs.total_logical_reads, qs.last_logical_reads,
qs.total_logical_writes, qs.last_logical_writes,
qs.total_worker_time/1000000 total_worker_time_in_S,
qs.last_worker_time/1000000 last_worker_time_in_S,
qs.total_elapsed_time/1000000 total_elapsed_time_in_S,
qs.last_elapsed_time/1000000 last_elapsed_time_in_S,
qs.max_elapsed_time/1000000 MAX_elapsed_time_in_S,
qs.last_execution_time,
qp.query_plan
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) qt
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
--ORDER BY qs.total_logical_reads DESC -- total logical reads
-- ORDER BY qs.total_logical_writes DESC -- total logical writes
-- ORDER BY qs.total_worker_time DESC -- total CPU time
--ORDER BY qs.last_worker_time DESC -- most recent CPU time
ORDER BY qs.max_elapsed_time DESC, qs.total_elapsed_time DESC, execution_count ASC-- max execution time
--ORDER by qs.last_elapsed_time DESC -- most recent exection time