Client won't pay - is a Statutory Payment or Small Claims Court a better choice?

ARenter

So after many months happily freelancing I've finally had a client who won't pay. It's an £800 job, part of which are expenses so I'm actually out of pocket on this one.
Client said they were happy with the finished products and going to pay but nothing. Multiple emails, phone calls etc. and no response. 

So to get my money I'm going have to step it up a gear. As I understand there are two basic ways of doing this:

. Statutory Demand for payment.
. Pursue a claim in the Small Claims Court.

Does anyone know which will be the better option? 

Jeremy535897

Discussed at https://www.gov.uk/options-if-youre-owed-money