Okay, here's the thing: Serling wasn't just some frontman they hired to read the lines. He was the show's creator and head writer, the one presenting it to the audience as his own work. Much like John Newland being both host and director of
Alcoa Presents: One Step Beyond, or Hitchcock being the creator, executive producer, and occasional director of
Alfred Hitchcock Presents as well as its presenter. It made it somewhat special that one of the actual people responsible for the work was presenting it to us, not just saying "Here's a story they're paying me to pitch to you" but "Here's a story I had a hand in making." And the fact that Serling wasn't a polished actor, that he was awkward and stiff on camera, was part of his charm.
So I say the host should be... Bryan Singer. He's going to be one of the key creative minds behind the show, as Serling was. He's as much a celebrity creator today as Serling was in his day. He's photogenic and reasonably well-spoken. He's even done a bit of acting in
X2 and
Star Trek Nemesis, so he presumably has a SAG card. To my eye, he even bears a slight (okay, very slight) physical resemblance to Serling. (And his name is almost an anagram of Serling! Okay, that's reaching.)
There's so much good SF material that's been written it's kinda amazing that so much of the dramatic SF (film and TV) has been pure crap. Sturgeons law strikes again.
You're kind of missing the point of Sturgeon's Law there. The whole idea is that the ratio of good to bad is no worse in television than it is in prose or anywhere else. It came about when one of Theodore Sturgeon's literary colleagues questioned why he'd write for
Star Trek given that 90 percent of television was garbage. Sturgeon replied that 90 percent of
everything is garbage. For every great work of SF in prose, there are plenty of bad or mediocre works, the same as in film and television.