Top Five Television Detectives

One of my favorite television genres is the detective series. Here are my top five favorite detectives:
5.  Luther in Luther  http://www.imdb.com/title/tt1474684/
4.  Sherlock Holmes in the BBC's Sherlock http://www.imdb.com/title/tt1475582/?ref_=nv_sr_1
3.  Charlie Crews in Life http://www.imdb.com/title/tt0874936/?ref_=fn_al_tt_1
2. Stephen Holder in The Killing http://www.imdb.com/title/tt1637727/?ref_=nv_sr_1
1.  Shawn Spencer in Psych http://www.imdb.com/title/tt0491738/?ref_=nv_sr_1