I use Twitter quite a bit and am always looking for a great full featured Twitter client. I have always felt that Twitter clients on Android are always one step behind the iOS clients, but that rant is for another day. The other day I ran across a client that I thought was very nice, fast, smooth scrolling and had a great user interface. The Twitter client was Falcon Pro for Android. I found the interface to not only to be easy to use it was really easy to read and I could get to almost anything in one thumb swipe or click. Falcon Pro is not a full featured Twitter client and is missing some advanced features like looking at ReTweets or muting or looking at mentions on another users profile. But for most it would probably be a great fit.
Update: I am being told by the guys over at XDA Developers that the Mute and ReTweet functions are there. I didn't see them. Link to the XDA Falcon thread below.
I have added the screenshot from latest version the Menu Retweets.