Stuck trying to decide between two phones

[u/toiletwaterchugger]

Hi, I'm after an Android for daily use. I've narrowed it down to two good contenders: an Asus Zenfone 11 Ultra or a Xiaomi 14 Ultra, both used 2024 models but in very good condition.

The Xiaomi has a better display, double the RAM/storage (although Asus can match it for £60 extra), better camera, much nicer design, more OS and security updates, faster charging, and it's a bit cheaper.

All the Zenfone has over it are a much nicer OS (I hate the look of HyperOS and want it as stock as possible), a headphone jack, and a bigger battery. Not much but these are all very important to me. On the other hand it has a worse display, worse support, costs more, looks very plain/boring, etc.

The Xiaomi is a nicer phone in nearly every way but I'm wondering if these are gimmicks and the Zenfone would be better for me to live with for the next 2 or so years. How do you decide between two phones in a situation like this? Thanks

(edit: budget is ~£450-500 GBP and location is UK, if that matters)