I also recommend Metzer. I ordered my first Campbells from Ideal, and while they are sweet little ducks, I had a shipped survival rate somewhere south of 50% (I ordered 12, ended up with 5, and my survivors aren't even safely into adulthood yet.) I got a refund for my order remainder and just received 5 golden hybrids, 5 white layers, and 3 harlequin hatch-lings from Metzer and they are really vigorous from the second they arrived (100% survival). I took the baling straps off and the top of the box started moving! 
I opted to go with Metzer the second time 'round because I figured it would be an easier trip from California to Arizona. I also popped for the Gro-Gel, and I suspect it made a big difference in general health. My Metzer duckies were so tiny when they arrived, smaller than my Ideal ducks. All the breeds I ordered from Metzer are based on Campbell lines so they shouldn't have that much of a size difference. It's made me suspect that Ideal sent older than day old ducklings.