What OFX does well
Supported destination countries - OFX supports over 55 currencies and many more exotic currencies.
Global presence - OFX has seven global offices in Australia, New Zealand, Singapore, Hong Kong, United States, Canada and the UK.
Customer support - Customer support is available locally in the global offices, over the phone and via email.
Where OFX could improve
Languages - Customer service and their website is in English only.
Customer sign up countries - Currently OFX supports customer registration from USA, Canada, UK, Europe, Singapore, Hong Kong, Australia and New Zealand.
TransferWise’s supported countries vary with different services having different supported customer countries and destination countries. These are detailed in the TransferWise Countries and Currencies article and is summarized below.
Send from - 23 countries plus the Europe SEPA countries
Send to - Over 60 currencies
Borderless account and debit card - Over 6 countries can sign up to their Borderless services.
TransferWise again wins. TransferWise, compared with OFX, supports more languages and registration countries. This alone may be the main reason why a person would choose TransferWIse over OFX. Simply because OFX does support their country for customer registrations.