If you think you would like a dragoon, then a dragoon would be "best" for you! In a little while, another model will be best. Like Smoke said, the Remington is a good model. So is the Colt army. The 1851 navy is cool. Have you seen that LeMat?
Seriously, more important than model is quality. Due to a recent example I bought, I would tell you not to buy anything made by Palmetto. The one I was sent shows they have ZERO quality control. You may get a good one by chance but that's what it will be, chance. Uberti has a good product, as does Pietta. Again as Smoke said, read around the threads here and you can decide a littlt better. And, you might want to buy PERCUSSION PISTOLS AND REVOLVERS. That book will be a great help.
Steve