Disagree with this. Law took out vice Admiral smoker and Vergo. I don't even think he broke a sweat. Luffy is obviously around the same strength as Law. However we haven't seen all the Vice Admirals yet. The only Admiral I can think of that might be sstronger than Luffy is Garp. Garp was offered a promotion before though.
law is luffy's equal , i stated luffy is above smoker (i am a smoker fanboy , i know what i am talking about when it comes to strength comparisons with him), law LOST to vergo , TWICE!
it took both smoker and law to defeat vergo once and for all , vergo was about as strong as momonga , onigumo,stainless and strawberry (the main vice admirals)
if you think garp MIGHT be stronger than luffy then luffy is clearly at yonkou level(might implies the possibility that luffy is stronger than garp , and the possibility of being equals and the possibility of grap being stronger than luffy , your point of view is very blunt)
seeing as garp was the only marine capable of cornering the roger pirates... *facepalm* , the strawhat pirates and heart pirates tagging up have a 30% chance of defeating the kaido pirates , if luffy and law where as strong as you say they are it would be an imminent 100% chance of victory mid-low difficulty (two crews vs one crew)
get your powerscaling sourted. sir.