[monkapotamus]

http://articles.philly.com/2008-05-23/news/24990246_1_cheez-whiz-cheesesteak-frank-olivieri

Whiz on a cheesesteak: Hit or myth?

"A recent Philly.com poll asked, "What cheese belongs on a cheesesteak?" and Whiz finished third. American edged out provolone - suggesting a runoff poll to settle the issue - after more than 5,700 votes were cast. (See poll, at right.)

Even Geno's owner Joey Vento, 68, downplays Whiz. "To be honest with you, I've never eaten Cheez Whiz, and I'm the owner," he said. "... We always recommend the provolone. ... That's the real cheese..."

[Larry Lucido]

Provolone is always my choice on any steak-and-cheese sub.

[buwaya]

I’d always heard provolone also.