Since snare sounds vary so much (ELO's Bev Bevan's sound was mentioned...contrast that with a cranked drum corp snare or Bill Bruford's Yes era pop) there are no hard and fast rules for snare batters.
There is the general wisdom of using a coated head if you play in a variety of styles that may include brushwork. That's an overriding reason why I will always use a coated head on all of my snares - although I do like the sound of coated heads on all of my tom batters as well. Having said that, coated singly ply heads (mostly Remo Ambassadors) are the most recorded drum head solution by a landslide. There may be some tradition or even superstition in this approach but I think this is a combination that will just work in general.
I've heard a great sounding rock snare with the clear Remo CS Dot on it. I normally don't use Remo heads but I have made an exception for possibly using a coated CS underside dot on one of my metal snares (brass or Acro). I think the clear version would be just a tad different timbre wise.
I also have observed one of my favorite rock drummers, Tommy Aldridge, use clear batters pretty much every time I've seen him and have gotten a peek at his snare. He's been doing that for years.
What you could also do is go for a recently released Evans head that is sort of a cross between the two. The EC Coated Reverse Dot head is translucent - although not completely clear. The EC coated heads in general have more of a 'frosting' than a coating. I think that head would have a great sound on a metal snare (brass, steel, copper, bronze, etc) yet the frosted coating would give a brush player plenty of texture.
Having a (ahem) few years of experience, I can remember when I started out in junior high and there was maybe 1/10th of the head choices we have today. Maybe. Therefore, have fun with all of the possibilities and experiment. It does cost a few bucks but pays off in 'ears' and tuning experience and growth.
"Really explore the space" - Christopher Walken as Bruce Dickinson on SNL.
Jim