out and away
By a very wide, inarguable margin. Usually used just before a superlative, such as "the best." They're out and away the best team in the league, but they've had a string of bad luck recently. That was out and away the worst vacation I've ever had. Everything that could have gone wrong did!
out and away
By far, surpassing all others, as in He's out and away the best pitcher in the league. [First half of 1800s]