Honestly - and I am not saying this to give them a puffed up ego - but I have listened to Bro. Blume, and Bro. MTD's messages, and I have truly enjoyed their messages whenever I have listened to them. They are deep, from the heart, and without all the fluff-n-stuff that others may use to make great sounding oratories, yet with the Word and Spirit mixed together that bring forth a powerful word.
I also enjoy listening to KP Yohannan ( Gospel for Asia
http://www.gfa.org ) as well. His messages never fail to bring a sense of longing and desire to my heart for a closer relationship with Jesus, and a hunger to reach out to those who don't know him.