I did a poll on another forum about a year back.
Out of something like 50 responses the most popular was Castrol TTS
Next was Motul and then Silkolene.
I run a heavily tuned Yamaha-ha 350 and it gets fed Rockoil which has yet to fail even though it's making silly power at over 12000 rpm, revving to 13K regulary. A further testament to Rockoil is that it kept the engine turning over when the primary gear pinion failed - this means that the autolube effectively stops working and you only get a minimal feed.
The RG and LC gets TTS coz it smells nice as will the AR and RD 125's - when they get finished.... some day, over the rainbow
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These aren't the droids you're looking for.