Is he any better than Dorrans and Morrison? I don't think so. He's not a bad player, and has a good shot on him - and would be a good sub, so I guess it depends on the price.
IF we sell Dorrans to Rangers for £5 million, then I'd try getting Gardner in for £3 million and see how it goes, I know he never got on with O'Neill at Villa and may want to return to the Midlands, so the balls in our court I believe.