[quote=@The Kid Lantern]
A Nightwing annual or Secret Files & Origins issue claimed Grayson was second only to Batman back around 2000 or so. 

~KL~
[/quote]

I feel like the Red Robin monthly starring Tim would stand in correction of that since it was in about 2009 that they established the whole thing about Tim being able to surpass Bruce. 

In which case Grayson is still third best, it just means Batman is the second best haha.