Marshall, one of the most experienced and wily scrum-halves in world rugby, would relish one final All Blacks fling before heading to a new career with current Zurich Premiership strugglers Leeds.
"Justin Marshall is a brilliant player, probably the best (scrum-half) in the world. He's been around for years, and has all the experience," said Peel.
"I think he is a good manager of a game, and he is strong and quick, with the respect of everyone around him."
Peel versus Marshall could match up as one of the series' key individual battles, together with a potential fly-half showdown between Stephen Jones and Daniel Carter.
If Jones can see off the challenge of Jonny Wilkinson - provided that the Newcastle fly-half is fit enough to travel - then it could herald a special liaison, reuniting Llanelli's former half-back partnership.
"I think Stephen has been outstanding this year," added Peel, who saw Jones leave the Scarlets last summer for a new career in France with Clermont Auvergne.
"He is really enjoying his rugby and he is really enjoying playing in France, and I am sure he will go to New Zealand and have a great tour."
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