Howdy,
I have an 1858 Remington that is a good shooter. I prefer pistols that have a top-strap-just seems a little more solid that way. I also have a .45 Colt conversion cylinder for that pistol.
I also have a Colt Dragoon,which is a little brother to the Walker. Walkers are big,powerful guns that are fun to shoot,but the loading lever tends to come down while shooting,locking up the gun. The Dragoon incorporated a latch to hold the loading lever up during firing.
Bellicose Bill