Since I've been discussing the new music I think it's time to talk about, some what, old music. The music that really matters. 
The Weeknd's old songs can be a mixture of drugs, losing someone you loved, Sex and partying. The Weeknd expresses how he feels in that specific moment, we all know our boy loves to party and thats a known fact. But he also has a heart,  he expresses his feelings as well.
I personally feel he has grown within his albums, for example in Trilogy he wrote many songs about partying with drugs and having sex, carrying on to Kiss Land he wrote songs that people will consider "in the feelings" and those songs show that he had a heart and he  isn't just trying to party and such. That carries on to Beauty Behind the Madness, in the albums he clearly carries himself differently, he understands the concepts in Real Life and "momma talkin that real life", because before he didn't really listen to momma by dropping out and leaving to become what he wanted to become a singer and song writer. 
This shows again why The Weeknd is my favorite artist, because he grows. He isn't like these rappers that just rap about money and girls, he mixes it up with different types of genres, for example on Kiss Land Odd Look and Pretty have two different types of melody and genres which I love. He is my absolute favorite