Most Valuable TestComplete feature

For me, it is ODT, object driven testing, as I do use it.

My ODT tree provides testing flow Control and also holds most of the test data.

Sweet spots:

- Separating test Control and test data from testing Code (keeping init/test Code separately)

- capability to handle complex Tests (keeping Control...) because of hierarchical structure (e.g. applying init Code at the appropriate Level :-) )

- test Control structure (= ODT tree) absolutely parallel to log tree => Maximum clarity about what was done

- Control structure dynamically adaptable (during test run) => sub-Tests can be configured as needed in the local context

- capability to use multiple instances at a time

.. simply great, but rarely used, I suspect

I do not know about any other Automation tool supporting this.