The real question that needs to be answered is what are you going to use it for mostly??
I own both, but I started out with the Buckmark because it was what I could afford, I liked it better than a Ruger MKIII, in looks and construction... and at the time I had no idea that the M41 even existed.
My Buckmark is a target model with the 7 1/2" fluted bull barrel. I've had it for about 8 years and it is superbly accurate, the trigger pull on it is very crisp, and it's more forgiving on the ammo you feed it.
I've used it for all around shooting, which included both formal (fun matches, not bullseye) and informal target shooting, pesky household squirrel eradications and a field gun. I can't say I would or could put the 41 into that role, as it's pretty much a premium target pistol.
I bought my M41 on an impluse when it showed up here in the classified section at a price I couldn't ignore. It has the 7" barrel, I bought a 5.5 heavy barrel for it too... not sure how I feel about the 5.5 barrel yet, it adds a lot of heft (or at least the feeling of it) to the gun, I kind of prefer the feel of the original 7".
The Buckmark was never meant to be a high end target pistol like the M41 is. S&W surveyed the top target shooters of the day asking what they would want to see in a .22 target pistol, and the M41 was born.
So making a comparison between the two, in my opinion, is like making the proverbial apples & oranges comparison.
The Buckmark is of high quality, it doesn't have the refinements or prestige of the M41, but it is a very capable all around .22 pistol.
The M41 does rank higher on the "Oh WOW!!" scale, and if that is more of what you're after, go for it. You'll not have any trouble selling it, if you so desire, and get what you paid for it. .