It would have to be Gettis, he has great speed and great size.
He actually outperformed LaFell during their rookie years.
I actually think that he is 100% but being that he hasn't played or even practiced much under Coach Rivera, he is going to look out of place and like a bottom tier wide out until he either gets it; or is cut.
The only other person you could really argue is Hixon and his only argument is that he has never been giving a real opportunity to prove himself as number one or two.
I'd like to give Lamont Bryant a nod, but I have only seen him briefly and that was at training camp,
Tools/Measurments To Be A Number One
Teddy Ginn Jr: A good slot option/deep threat and a great specialist.
Brandon LaFell: An ideal number three wide receiver, but an average number two.
Kealoha Pilares: 6th string deep threat that can run smoke routes
Armanti: Possible number four wide out if he puts it all together.
Joe Adams: Like Teddy Ginn, possibly a good slot guy if he can focus and get it together.