Dexter
Chuck
Leverage
American Horror Story
Hemlock Grove
Firefly
Haven
Warehouse 13
The last time I checked these were all available on Netflix:
Alias
Heroes
Battlestar Galactica
Farscape
The 4400
Roswell
Being Human (UK version)
The X-Files
Continuum
American Horror Story
Supernatural
Leverage
The Dead Zone
Walking Dead
Supernatural
Lost Girl (some people don't like it, but I do!)
Arrow
Dexter
Chuck
Torchwood
The Gates (only 13 episodes but you can try it)
There is a movie/tv/book/web-series/a lot of other media things blog that updates everyday that I check out. I found it like two days ago and I really like it. The suggestions are great you should check it out if you want anymore suggestions.
Supernatural
Sherlock
Merlin
There's probably more but these are what I watch (including Doctor Who) and I'm probably going to watch something along the lines of these tv shows
I really loved the Political drama House of Cards, but some people I know found it dry. Give it a whirl.
Generally Good SHows on Netflix?? Breaking Bad and Walking Dead two amazing shows that shouldn't be over looked by anyone! :)
Supernatural. It has pretty much everything you said you liked.
I like mystery, drama, sci-fi, action, suspense, adventure, and some fantasy. I also love a good plot twist (That's a reason I love lost a lot). Lost pretty much included all of what I like. I also have watched doctor who, and fringe. Any other suggestions.