Prefer local IMAP or Maildir store?

[Fabian R. <is...@ma...>]

Hi,

I would like to sync a number of mailboxes (mailbox.org/GMail/GMX) to a
local Dovecot installation with one user account. Since Dovecot uses
Maildir++ format, I could configure mbsync to write either to the same
maildir that Dovecot uses or to the IMAP account hosted by Dovecot. Now
I am wondering what store I should choose?

Thanks,
Fabian