Moody and miserable have - unfairly at times - been thrown the Scot's way. A bottle of Chateau d'Yquem is a new one though. Unsurprisingly, the comparison came from the wonderfully eccentric Michael Llodra, the 33 year-old Frenchman who will play the reigning US Open and Wimbledon champion here tonight as Murray's defence finally begins after two days of kicking his heels.
Llodra may have spent his life living way out in left-field - he once hid naked in a locker to surprise a rival among other japes - but his idea of the world No.3 as something special to be washed down actually hit the nail on the proverbial head.
Chateau d'Yquem is characterised by its complexity, concentration and sweetness. There is certainly no soft or sweet element to Murray's play these days; Dunblane grit and aggression are on the menu right now. But the 25 year-old can be hard to work out at times , especially considering some of his catalogue of early career rollercoaster performances.
His displays over the last 18 months though suggest a new boldness and strength to his play, something Llodra is all too aware of ahead of this afternoon's match.
The Frenchman, a journeyman who has never been beyond the fourth round of the US Open, is set to call last orders on his career at the end of next year to concentrate on raising his young family - and produce wine which can be consumed at a bar in Dijon he part owns with Arnaud Clement.
His vineyard in Burgundy was clearly fresh in his mind while being asked to dissect Murray's game.
"What kind of wine would Andy be? Probably a sweet wine - a Sauternes, like a Chateau d'Yquem or something like that," smiled Llodra. "When you watch him you have to have a big weapon. But when you're on the court against him you can feel that it's impossible to move him or to win the point.
"It's not easy. When you watch him on TV you can see that he doesn't have a really big weapon, but when you're on the court you can feel something strong from him."
"Myself? I would be a wine from the Rhone Valley, something like a Cote-Rotie. Some years it's good and some years it's bad!
"I have three kids now so I will probably stop playing at the end of next year. I will probably work in the wine business. Wine is my passion. I opened a wine bar in Dijon last year with Arnaud Clement. Maybe we could do something in other cities as well. We own a vineyard in Burgundy which we have tried to develop. But it's expensive."
The last time the pair met, at the Australian Open in 2012, Murray won in straight sets in a match which ultimately resembled a humorous Sunday morning knockabout at your local park.
In true comedic, Henri Leconte style, Llodra spent the last few points of the final set - in which he lost 6-0 - mimicking the grunts and groans which normally accompany a Murray rally in the heat of battle.
The Scot enjoyed himself that night in Melbourne but Llodra isn't expecting too many laughs this afternoon.
"It's not easy at all for me against Andy," he added. "He won here last year, so he's the defending champion. Also he's had an unbelievable year, especially winning at Wimbledon. There had been a lot of pressure on him for a long time and finally he did it.
"It will be especially tough for me because I've just come back from a knee injury. I'll do my best. But all matches are different. If I am to have a chance of beating a guy like him it's good that we are meeting in the first round. He's more solid these days. Before, he was playing well but there were periods in matches, maybe for only 10 minutes, when he did not play so well and you had your chances to beat him. He's pretty strong physically. He's one of the best athletes on the tour.
"Of course. When you are close to the end you try to enjoy the rest of your matches. And when you're on a big court against a big player it might not be easy, but it's always a pleasure. Many players don't realise how lucky we all are to play tennis, to earn money from playing tennis."
Fresh from the opening day of British triumphs, Laura Robson is aiming to make the third round when she takes on Caroline Garcia of France, the world No.75.
Robson, rightly confident following her destruction of Spain's Lourdes Dominguez Lino, said: "I have seen her play a couple of times here and there. Not very recently though, so I think Miles [Maclagan , her coach] is out there now watching a little bit. She's a pretty smart player. She plays with quite spinny shots. I just have to wait and take my chances in the rally."
Roger Federer, whose opening round match with Slovenian Grega Zemlja was washed out on Monday night, eased through in just over one hour 30 minutes 6-3, 6-2, 7-5.