I thought Drown was good. Their newest one "Don't Look Down" is another story. Definitely different. I like that they are doing whatever the fuck they want, though.
BMTH is hands down my favorite band in the world. I got to see them live last year with ADTR.
They are going to be producing their next album themselves which is coming out this year. I feel it's going to be much different. Sempiternal is a masterpiece and they've conquered that genre so I feel they are going to try something else now. Whatever it is I trust it will be good.