@Gargron given that you are using American English spelling (recognizing) rather than British English (recognising), isn't that to be expected?
Anyway, I do prefer 'aluminium', given I'm Dutch and that's also its spelling in my mother-tongue.
(Interestingly enough btw, 'aluminum' (the AmE spelling) actually is an older spelling than 'aluminium' (BrE spelling), and if the name hadn't been amended by Sir Humphry Davy, we could even have been calling it 'alumium' (note the missing 'n'). See etymology of 'aluminum')