This is a tough one, and the result will probably be a compromise. The volume of one chamber to another is not as important as the shape. A fast burn shape is more desirable than an older open design as it can make power with less ignition advance and laess fuel. Additionally, the quench distance should be considered. Piston quench distance under the head should be in the neighborhood of .045" - .050". This small distance creates a large amount of turbulence in the chamber while preventing the fuel/air reaction from progressing in the quench area. A larger distance reduces turbulence and can actually invite detonation or pre-ignition. Here's a nice, quick article about quench distance and also showing some piston shapes designed to help increase quench while providing proper piston volume: http://www.superchevy.com/how-to/eng...earance-guide/

If this is for your 383 the choice might be tough. If the larger chambers are from an old design set of heads, I'd favor the smaller versions. But I'd look hard at the piston shape that I put underneath it. A "D" shaped inverse dome would certainly be better than a dish which occupies most of the piston top.
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FWIW.