I have only one doubt that revolvers may be more reliable. Here's the hypothetical:
Say you suddenly have to bring your compact 5-shot pd gun into a deadly force situation. If you can't get the job done with the first 3 or 4 rounds, you will need to reload.
On many revolvers, if you try to eject any number of still-loaded rounds with the ejector rod, you run the risk of the heavier loaded rounds tipping with gravity to an angle that will free the base of the cartridge(s) from being held by the "star". Once it skips over the rim, you're jammed, un-reloaded, and out of action until you can get them out manually-one by one.
If you don't use the rod to make a partial reload eject, you run the very probable risk of fired cases swelling and holding the star in the cylinder until freed up.
I've practiced partial reloads by quickly pointing the revolver 180º skyward and letting the loaded rounds drop with gravity, THEN manually ejecting the empties and reloading. It takes another couple of seconds, but with practice, I'm now much more sure this is the way to go on a partial reload. Practice, practice, practice!
The good news is that a wheel gun most likely wheel give you the possibillity of several rounds off before you have to do any corrective action. With my autos, I may only get the first one, so I plan to make it count either way. Basically, I don't trust myself to think clearly at 2 a.m., in the middle of who-knows-where, or in the heat of a man/animal attack.
However, I still like my autos better for comfort overall.
IMO, "7"