Post #11 shows what I've got, or at least the style of mine. Clearly shows it will fit column shifters though.
Purchased mine from a friend in another state, so no clue of the brand. IIRC back when I got it, he said it was what Pep Boys carried, but we didn't have any around here at that time.
I suppose the chrome would be ok, as long as it LOOKS like a guard. It's the same concept as the club: (however effective IT is) hopefully thieves will notice it before an attempted theft and you won't end up with a broken window. Topless, really won't matter I suppose.
It really depends on how desperately someone wants your truck, and that likely will depend on how much your truck (or parts) are worth. In my case, I don't think anyone in their right mind would waste time getting a flat bed to steal it. If I leave the keys in the ignition with the door open, maybe lol. But seriously, for a truck that doesn't have a lot of high dollar items worth stealing on or in it, I'd feel comfortable with solely a column guard.
As shown in the pic above, 99% of the time, punching the column on the drivers side is how they are stolen. Bust the window, break the plastic there, I'm sure a thief with a little practice can be driving away in a GM car or truck with the stock column in 5 seconds. Slow that approach down, which the column guard does, and you've eliminated 99% of the people who might steal your truck.