Looking over her IMDB, there isn't a lot of movies she's been in that I like.
I loved her in Death Becomes Her, Adaptation & Deer Hunter is a classic although I have my own issues with that movie in terms of pacing. She was excellent in Doubt, another movie I liked.
Other than that, she's either been in stuff that's too stuffy or simply not my style (Mamma Mia, Into the Woods)
One out of left field role that entertained me was playing the posh dime novelist in She-Devil. Haha entertaining piece of crap, that one is.
I think Cate Blanchett is much better and her movies are not a task to sit through like many of Streeps. Still , for me it goes:
1. Adaptation
2. Deer Hunter
3. Death Becomes Her )(my favorite of the bunch)
4. Doubt
5. She-Devil (haha extreme guilty pleasure)