A little while back there was the thread "Who is the best Detective in the DC Universe not named Batman?" (https://community.cbr.com/showthread...t-named-Batman).
So, based on the responses to that thread (and also eliminating characters who have been Robin, like Dick Grayson), it looks like these may be some of the more popular candidates (in alphabetical order by first name):Blue Beetle (Ted Kord)
Cameron Chase
Clark Kent (a.k.a. Superman)
Detective Chimp (Bobo)
Elongated Man (Ralph Dibney)
James Gordon
Jason Bard
Lois Lane
Martian Manhunter (J'onn J'onnz)
The Question (Vic Sage / Charles Victor Szasz)
Riddler (Edward Nigma)
Roy Raymond
So, who would you chose as Best Detective in the DC Universe (not named Batman and not previously Robin)?