What do you mean reliability? Unless you get an odd lemon with extremely severe problems somehow, all those brands will absolutely go bang every time you pull the trigger, no misfeeds, jams, or whatever auto fans have to sweat. With a wheelgun, pretty much the difference then is in the detail, like accuracy, handling and your personal preferences. I cannot perceive an out of the box superiority of any of them. But when the things get old, like when thousands of rounds have passed, then you might have a different story. Only drawback I can think of is that Colts have critical timing, and certain Colts can get out of time from wear. Then finding someone to fix these certain Colts correctly can be a prob. Even loosy goosy revolvers of these brands can still go bang all the time, regardless of lead spitting, excessive gaps, flame cutting, etc. Better try the poll with autoloaders. EDIT-Whaaa... Thought the third choice was Colt, but what the heck, Taurus clones of Smiths probably are fully reliable as long as they work during the first testing out of the box. So I don't own any Ruger wheels right now, but I would vote them tops for durability if nothing else....