[newbie] Which Windows mail client is best for compatibility?

[Viboon Chaojirapant]

Hi All,

I am now using Windows at work and Linux at home.
I wonder what is the best Windows mail client that
I can use if I want to bring my mailbox data to
and from work/home?

Currently, I am using Outlook98 at work and 
NetscapeMail at home. What are some of you using?

Thanks in advance.

Cheers,
Viboon