I would choose a Seeburg.  Rolls are easier to find, they are easier
to rebuild, play-rewind is more reliable.

Wurlitzer changers are not always reliable, and stick and act up.  The
Wurlitzer pumps are usually covered in leather and are a royal pain to
do over.  Wurlitzer changer rolls are hard to find, although the music
is a bit better than the G rolls used on the Seeburg, which tend to get
a bit monotonous.

Give it a lot of thought, and ask many.

Bruce Clark