I don't think you could go far wrong with any of those choices.
The Cobb is probably the hardest of the three to find, so I'd probably go with that one, unless what's available are very average threes and there's a really nice example of one of the others.
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Which reminds me how far the hobby and my collecting tastes have come. When I started, 2k would have bought all of those with loads left over. Did I buy the big stars or cards in really nice condition --- Not usually.
With all I've learned do I do that now? Only once in a while
Steve B