Life long Cardinal fan and born and raised in the St Louis area. I'm not sure Gibson even makes the top five. If you factor in both performance and likeability, I would say the general consensus of ranking all time Cardinals would fall along these lines:
1. Musial
2. Ozzie
3. Pujols
4. McGee
5. Molina
6. Brock
7. Gibson
And if you could have some of the long deceased old timers weigh in, they might put Dizzy Dean ahead of him too. Gibson was a fearsome competitor, but kind of gruff and quiet from a personality standpoint, where he's just not as beloved/revered as some of those above him. One man's take.
Pretty tough losing both Brock and Gibson so close to each other. Feels like chunks of childhood just being ripped away.
RIP Gibby.