Lewis was brilliant, had the odd mistake in him each season. Last season was definitely the worst of his time here but if he regains his form I have him at either 2 or 3 in the league. He'd made a couple of brilliant saves already and we're three games in.
It's not just his saves that make him good. It's been years since I've seen an Aberdeen keeper as comfortable as him when dealing with crosses, along with organising his defence.
Gordon was pretty poor at the end of his Celtic career. He was also prone to wiping out opposition attackers and getting away with it because he played for the best team in the country.