I like
And Bible - There are lots of free bibles, commentaries and dictionaries to download and use off-line and because it is open source you can always improve it if you don't like it. There are also lots of foreign language bibles available and a number of interface localisations if your first language is not English or you like to read the bible in another language.
Having said I like and use And Bible I must confess I am biased because I am the developer and there are lots of other terrific bible applications available for Android and the main thing is not the application but reading the Word of God.