S&W 686 Stainless 4" - I choose it because its a proven design, built like a tank, S&W beautiful, and will hold its value. Main uses is hunting, targets shooting, self defense it's just the right size to do it all IMO. Granted a smaller size would shine as a carry weapon and a larger size would shine as a target/hunting rig. Being in the middle makes it the jack of all trades.
taurus 4" stainless steel. I can't recall the model#, but it is an older model that was a straight copy of a smith and wesson design. I chose it because it was cheap to buy. Its main use is to be carried while out deer hunting and hiking. I made up some snake loads that I usually carry in it as I find Copperheads in many of the areas I hunt or hike. I find the gun too large for what it does for me; a j-frame or SP101 sized wheelgun with 3"bbl. would suit me better. I really like the Taurus Tracker model that my father carries (except for the porting) because it is built on a medium-sized frame.
A Monson Mass made Dan wesson model 15-6
It is a little heavier than a SW 686 with the same barrel.
It is a great hunting, target, defence wheel gun. I have a 4 inch barrle for it as well, and used to have a 10 inch barrel, but since I hardly ever used the 10 in, I sold it a while back.