actually since an auto uses recoil to operate less gets to you therefore less felt recoil.
TANSTAAFL
If it weighs more it kicks less, if it weighs the same it kicks the same, etc. Nothing about revolvers allow the repeal of Newtonian laws. Revolvers enjoy a little wriggle room by having more grip options, but that's not the same thing as actually having less recoil.
Actually, it's not that simple. If it were, the Sig 220ST would be notably worse then the 1911A1 yet it's considerably less despite being smaller and lighter.
First off, recoil draw is a double edged sword. On one hand, the drawing of the action can reduce the battering. On the other hand, the draw it's self is a contributing factor to the kick and when it impacts, you have a whole slide delivering the punch. Allot of things affect recoil in odd ways. For instance, if you take a Beretta M-9, get a 3 recoil spring kit from Wilson Combat and install the lightest one, recoil on Winchester bulk ammo will be fairly mild. If you take out the light recoil spring and install the heaviest, the recoil will be noticeably WORSE! This is in part because the recoil draw happens so fast that the kick and tug feel the same and because of the heavier recoil spring, much more of the energy is delivered in to the tug which lasts longer then the punch giving more for the shooter to feel.
Another factor is balance and weight displacement, which gets so complex that I don't know where to start, though some of the basics are that if you have more lasting overhang (weight in front of the trigger guard), you can expect the gun to not punch as hard. This is one of the important differences that a revolver makes as bull barrel revolvers have allot of stationary overhang.
Another is slide draw. The longer the slide draw, the more room it has to disburse the recoil. A short and fast slide draw can very easily result in as much as DOUBLE the amount of recoil from a semi-auto then a revolver. The Bryco Jennings 9 is a prime example of this, having recoil comparable to medium .44 Magnum loads out of a standard size revolver.
I can really go on all day about how different factors in a gun affect recoil. Semi-Autos have a higher potential for reducing kick without adding to the bulk of the gun, but these resources are rarely taken advantage of from my experience.