Take whatever vaccine you can, but I’d personally hold out for either of the mRNA flavors. Oxford/AZ have played too many games (cohorts and PR) for my taste.
It also seems to be less novel than the mRNA vaccines, but I’m no expert. Can someone confirm the Oxford/AZ vaccine is using well established techniques?
I don't think that novel is necessarily what you want when it comes to a vaccine. Kind of like saying that x software is better because they used all the very newest tech that just came out. I would prefer something tried and tested.
However, the data and results for the mrna vaccines seem very positive so I would still be fine taking it.