I also think those potential first line centers really must be scrutinized. Look back at 10 older drafts or whatever, those potential No 1 Cs are pretty rare and can fall really heavy (besides the 90'-91' and 05'-06' drafts it can't be that common with 3+ top centers in a year)...
From a macro perspective the key to this draft is certainly Canada. Canada always produces great hockey players, but that program's top years also differs a lot from its worst years. There have been some crops of Canadian kids that could have a really meager output compared to what that program potentially can produce. One example I often look at is the 99' draft. The top three Canadian kids eligble for the 99' draft turned out to be Tim Connoly, Ryan Malone and Mike Comrie in order.
The Canadian program can be kind of hard to read because the individual performance of these kids are pretty consistent. Facts are that NHL teams -- never -- have been able to call out the real down years from the Canadian program. Top kids will score great numbers in the OHL/WHL/QMJHL no matter if they are great NHL prospects or not. I have not been blown away by the Canadian kids the last two years, but they have still been drafted really really high. The jury is out on them, will the Villardi's, Glass's, Hayton's, Bouchard's, Dobson's, Makar's and the likes become big stars in the NHL? Sweden is weak this year. Russia is at least not really strong. Finland is OK to great, who knows what their top kids as of late will amount to. US is really strong. Is Canada really great it will be a very strong draft, but if the last years and this year are down years for the Canadian program this coming draft won't be that strong.