The Strangers is a great movie.
Some movies I have liked in the past 5-10 years or so - EVIL DEAD (the new one), The Babadook, It Follows, The 'Hatchet' Series, All of the V/H/S Movies, The House of the Devil, Clown, Burying the Ex (more comedy, but still great), Tucker & Dale vs Evil (satire / comedy), Trick 'r Treat, Martyrs (the original not the ****ty remake).
Just off the top of my head, but I'm sure there are more.
Still would consider the 2000's pretty meh for horror overall. Especially more mainstream stuff.