So ... I'm looking at all the nice new shiny gas grills (LP, that is) out there ... and
wow, there's a *lot* of choices. Been a long time since I've bought one of these things.

Let's see .....

Burners: Stainless Steel vs. Cast Iron vs. Brass vs. Aluminum (I think) ..... what's
better, and why?

Splash Shields / Flavorizer Bars: Some of the burners have them, some don't. Why?
Does it really matter?

Cooking Grates: Stainless Steel vs. Porcelain over something vs. Enamel over something
What's better, and why?

Lava Rocks and other ceramic / cement briquettes seem to have gone the way of the dodo
bird. Is the "new" model just cooking directly over the burner?

Firebox? What do you look for?

Thanks ... Phil