[Foo3112]

I will be answering in terms of investment since price is being factored into the question.

1954 Topps Hank Aaron.

PSA 7's are hovering around the 15k mark. If you want a nicely centered one, you'll have to pay a bit more. But one can certainly be picked one up at that price still.

Sure, you can also go with a low grade 33 Goudey Ruth or even a low to mid-grade red/green Cobb, but the way I see it, when comparing to the Aaron RC, the Cobb(s) came out about 50 years earlier and the Ruth was about 25 years later. But the Aaron (PSA 7) is already at the same price point as those other two. That and it being a PSA 7 tells me that in the long run, the Aaron would be at a much higher price point in the years to follow than those other two iconic cards.