Which of these would you say is the best PDA not with phone? Palm TX, HP or Nokia?

I am no IT boffin so I just I want the best for storage of pics, voice recording, excellent usage of word and excel docs and standard internet use.
If you know anything about them please tell me.
I want to be able to access wi fi internet without any hassle so ease of use is also vital.
If you recommend one please add model model number like TX etc.
Many thanks.
Thanks.

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