Player stat impact (which one is "better")

[AlenOpasnost]

One has better overall stats, full star higher than the other. Other one is much better in defense but completely lacks attack and p&m.
I realize certain stats are supposed to have more impact but at what magnitude is beyond me.
So the question is, which one will perform better at DL or DC position. Also, does order of positions impact player's performance in any way? Will DL/DC on DL position perform better than DC/DL
Any useful insight is welcome.