I can't really find any discussions away from back then. I'll just hold off the conversation about which of the two had the better series. Both were superb. I won't argue too much if someone wants to give the nod to Sid. I'll check in some of the games footage later on to refresh my memory.
But after looking in to it a bit this morning, I think the reason why I originally thought that OV was considered better was because he has generally been outproducing Crosby on playoff matchups.
Crosby vs. Ovechkin debated by NHL.com writers
Adding in last playoffs the numbers in 26 games are:
Crosby: 15G 15A 30P
Ovechkin: 17G 17A 34P
Those numbers per 82 games (because that's a threshold we've used to) amount to:
Crosby: 49G+49A=98P
Ovechkin: 53,6G+53,6A=107,2P
Not a huge difference and one could easily argue that Crosby's overall impact on the ice tips the scales. But in light of those numbers, I don't see how either of the two has a significant edge over the other in head-to-head comparison.