I have to disagree slightly.
#1 Singles have won Vegas (LOTS of people ate crow that day....then the next year when they did it AGAIN) poor shooting bows do NOT win Vegas. Singles have one on the 3-D range often enough as well (not that it' s just good at 20 yards). As far as creep tuning goes, it' s been a LONG time since I have creep tuned a bow. PERSONALLY, I don' t find it usefull for bows with a solid back wall.
#2 Level nock travel is both over rated...and NOT found on a 2 cam bow...dualies are normally a smoother line, but NOT level.
I have always said that there is NO inherent advantage to EITHER style that makes it THAT much better. TRUE, MOST single cam bows have a narrow valley, making it less forgiveing if you creep before the shot...but as mentioned, some 2 cam bows are the same way. It' s just a question of cam profile.
With modern strings, keeping a dual cam bow synched is getting easier than ever...these strings also make keeping your nock height adjusted just as easy.
Solo cam bows DO seem quieter.
All in all, BOTH will shoot better than most archers (as will the various cam & 1/2 bows) Shoot what works for YOUR style.