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Longfield joints are by far the best bang for the buck, basically the strongest u-joint you can buy at half the price of a CTM.
Yukon shafts in D60's are fine, its the D44 Yukon stuff that has a really bad reputation.
Alloy USA was sold recently, sounds like their old shafts will still be warrantied but future shafts will be produced under another name.
Superior makes good stuff, but at twice the cost of Alloy USA and Yukon.
If you feel like dropping $2K on shafts, nothing will beat the Longfield CV's.