"Better" is a very fluid term. Whichever better suits the needs of the person using it will always be the "better" of the two. It all comes down to the firer, purpose for it, and situation. Not to mention there are many variables at play which you left out... there's a number of calibers, configurations, etc. available for each.
revolver
There is no better- some work better for some purposes than others. Sort of like which is better- a spoon or a fork?
A revolver has a rotating chamber that houses the bullets a pistol has a "clip" or "magazine"
A semi-auto pistol would be more prone to malfunction than a revolver.
the revolver allows multiple shots with reloading,that can be handy.
Sheathe.
Ruger's website lists the current offerings.
Yes, pistols are handguns, and so are revolvers. Technically, "pistol" refers to a semi-automatic and revolver refers to a revolver, but people typically use pistol to refer to any handgun.
It all depends on what pistol you are talking about for example on the Revolver it is a grip panel where you hold the revolver, if you are talking about a Semi-Automatic Pistol, there are two things, the grip panel, and the ammo magizine.
if it's a revolver......32 cal revolver ammo if it's a pistol......32 cal pistol ammo
Rossi
Pistols are contained in a holster.