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Now that we know a little more about what is attracting the OP to each of these watches it makes it easier to narrow down the selection process.
I have the Apollo 11 50th and also a specially modified new Speedmaster with the Apollo 11 35th dial which is similar to the one in your pic except it has the date of the moon landing in red.. It's on a Silver Snoopy strap (black Cordura with white stitching).
The Apollo 11 is a wonderful watch, the fetish on the 9 o'clock sub-dial is way overblown, but that's just a personal decision. It's sporty enough but the gold does make it a little dressier than an all steel piece, but still wearable in all situations. The bracelet is top drawer, a lot different than a Rolex bracelet, more jewelry like in comparison.
The Speedmaster panda dial is beautiful, an opaline finish with the black sub dials makes it striking piece. Omega didn't make that many models with a true panda dial (Mitsukoshi, Apollo 11 35th, and Tokyo 2020) so it is not as often seen, it's more Rolex-like than the Omega Apollo 11 dial. I have it on the Silver Snoopy strap and it is just about the perfect wearing Speedmaster, imo.
Either one is a worthy contender to add to your stable. For me I probably enjoy the panda dial for day to day wear.
I'm a little late to this party, but obviously my vote goes to the Apollo 11 50th. It's the pinnacle of my collection, and I hate to part with it, but I will likely be putting it up for sale shortly. Sigh...