Good thread.
I have to say I agree with FHG & Skin Blues.
Fantasy hockey value is cumulative and spills over across categories. It requires some iterations to get there.

In this link, I have a pdf called test9... which is a multi-cat scoring system that I set up and I finally hit a huge comfort level with it when all the category scores for the entire player pool summed to similar amounts. Ma has seen it. PIM, in my models, always seems like it has inflated value (based on the rank of PIM-goons... but I actually think it's accurate "actual value". It's a good example of the spill-over value of having one category-strong player. (and the converse is true). Having a PIM-monster allows the GM to focus more on offensive-cats since PIM will be taken care of. That strategy is an example of the spill-over value from having one guy that is so incredibly great in just one category.
(Of note: the best value I extracted from my work is this: PPP should be the main category invested in on the front-half of a draft... because it is the category that drops-off/diminshes fastest. Approx 66% of PPP are found in the top 90 of 180 players. After that, there are much fewer to be found. PIM/Hits/BkS, as we are all learning, are by far the easiest category to find/stock at the end of a draft.)

As for the players,
Kessel falls in around #55 forward based on his low PIM/hits.
And E.Staal falls around #64 forward based on his low +-/hits... though I did buy on E.Staal (& Rick Nash) in several leagues this year... mostly expecting a correction in their +/-.

I actually had some off-site number-crunching discussions with temek (who is probably among the Dobber elite with number-analysis) a few month ago.
He's another solid-mind for getting into the numbers. I was impressed.
Yourselves (FHG, Skin Blues, Ma) included. Hey Robbie & horrorfan are a couples others with a good grip on these numbers.

We need a club.