C&B
Nice guns. I cut my teeth on percussion revolvers. Years ago they were cheaper to shoot than cartridge guns and that was a big draw for me. I started with Uberti Colts and as I could afford them upgraded to 2nd Generation Colt BPs. (Although that could be argued since Uberti had a hand in making the raw parts for Colt.) Oh well - some thoughts:
My Walker is very accurate and never fails, just a pain to tote around. Big and heavy.
I have always been drawn to the .36 calibres: 1862 Pocket Navy and Pocket Police models. Easy to carry, reasonably accurate, and just plain fun. I have had few problems with either of these models. The Pocket Police goes with me on a regular basis. Great little camping and woods gun. (Before anybody goes ballistic - I did not say I was bear or hog hunting with a .36)
My all time favorite is the 1851 Navy. I have 2, 2nd Generation Colts that are a hoot. These guns are smooth, accurate, and above all classic in style. It doesn't take long to see why they were such a favorite.
Lots of different models and types out there - personal preference really comes into play. Buy the best quality you can afford. I would agree with reddbecca. Stay away from brass frames. They may not give you trouble unless you shoot a lot - but they will be affected in resale value. Some reenactment groups do not allow them and that would limit your market if you ever wanted to upgrade later. Be patient in learning. They require more cleaning, and as you go you will learn little tricks such as crimping your caps so they stay on better. These guns are fun, unique, and will give a lifetime of pleasure before becoming heirlooms.