[1954 topps]

There are a few ways to ensure a properly centered Banks IMO.
1) Check the bottom boarder, this should align with the right and left boarders.
2) The cubs logo should be an equal distance from the right boarder as the bottom right boarder. This ensures a 90 degree straight cut card.
3) Top/Bottom centering- The bottom boarder should be equal to the space above Ernie’s name.
Also, the cubs logo should have an equal amount of boarder on the top and the right side, another check for a properly cut card. Another consideration is that the right edge of the cubs logo should be parallel to the right boarder.
4) Ernie Banks name is often cut off at the top of the card, this is a result of poor printing, not reflective of the card being miscut or off center. In general since it’s a common printing issue most folks ignore it.
5) The black and white image shouldn’t be factored into the centering as it’s a secondary image layered on top of the primary image and was done so purposefully to overlap the primary boarder. A centered card will have the rear of Banks near the right boarder and there will be some white space, however, less boarder than the primary image.

My attached card is shifted to the left probably 60/40ish but looks good top to bottom. The left/right off centering is consistent from top to bottom based on the width of the boarder between the cubs logo and right boarder being the same as that at the bottom boarder.
You really can’t go wrong with any Banks rookie but they sure look extra amazing centered!