Re: CE or Head of Development?
There's no good answer to this.
Most of them that are reputable will tell you they can't accept unsolicited submissions.
(That doesn't mean they won't go home that night and read it anyway, but they'll at least tell you that. Odds are they won't read it, though -- they've got more solicited submissions than they can handle already.)
So there's no "more likely" -- you're digging for a needle that may not exist in hundreds of hay stacks. Best chance of finding it is to dig through every one.