Tell me, when drafting players for culture - what exactly are you looking for? Itemize the criteria you require for 17-18yr old boys.
You don't draft for "culture," you draft for attributes that correlate to professional success.
The one's I'd look for apart from raw physical talent:
IQ, on offense, vision, seeing the ice and how plays unfold, being able to anticipate, on defense, understanding responsibilities and positioning and angles.
Work Ethic: some players work harder off the ice, they improve their skating, their shot, get stronger, study film more than their peers, and given their physical limits, improve more
Motor: some players have more drive, stamina, recover quicker, play at full speed every shift
Competitiveness: some players hate to lose and play that way
Self-motivated/emotionally secure: some players can handle criticism and use it to self-evaluate, don't need to be pushed, set an example for teammates, natural leaders
These attributes can't turn an average player into McDavid, but they increase the odds that the player will improve over time and outperform expectations based on current play at lower levels.