Most reality TV shows are really bad in my opinion, namely the ones that follow someone's life, or they swap families, or plan their birthdays.etc. Games shows and talk shows are pretty good, for example Fifth Grader, all the Dance comps, Rove, Rich List.etc.
Cop shows are only good when it's character-driven. NCIS is awesome. Women's Murder Club wasn't bad - it had potential before ABC decided to axe it! CSI and Law and Order have become too procedural for me. I didn't like Rush either -- my friend ranted about this show the other day -- hilarious critic. Numbers was interesting too.
That said, everyone's entitled to their own opinions and taste and I respect that. =)