Neither?
Cooper isn't valuable enough in a draft with potentially 8 WRs carrying Rd 1 grades and Ray isn't even IN Rd 1 grade range, in HYATT™'s opinion.
Yer Rd 1 pick should be a starter, Cooper qualifies, but yer HIGH Rd 1 pick should also be used to sniff out a guy at a position that does not have depth and can't be solidified in later rounds.
Cooper can be interchanged with half a dozen other WRs in this draft.
He may carry a SLIGHTLY better grade, but he is not clearly head & tails above other WRs like Kevin White, DG-B, Perriman, Strong, or Parker.
All 6 of those WRs will probably go off the board somewhere in Rd 1, but half will still be there by pick #15, which the Jets could trade back into and pick up either an additional 2016 Rd 1 pick or a high 2015 Rd 2 pick - both of which are worth far more than Cooper alone will be.
(Starting DL is extremely weak in this draft, so teams WILL give up some ransom to move up and get a starting DT/DE.)
LBs, on the other hand, are not deep in this draft, so a starting pass rushing 3-4 OLB will carry a premium - a premium that requires a #6 pick, even if the player is overdrafted a bit, due to the alignment of teams picking near the Jets.