[Josy]

Which of them puts the most effort into tasks?

[Speedster]

I like how Hazel just deals with crap, unpleasant tasks.

[Jords]

Hazel dealt with the task this week very well, gotta give her some credit!

Overal probably Callum, hes quite a focused person.

[smudgie]

Hazel.

[Chuck]

Hazel > Callum > Gina > the rest

[Amy Jade]

Hazel by a mile, don't forget Gina drinking that dog food in the zombie task too

[Visage]

I'd pick Hazel & Callum too.

[karezza]

The Twins.

[Shaun]

Hazel, Gina and Callum.

[smudgie]

Will have to add Sam after that art task.

[Sophiee]

hazel always seems to put her all into every task no matter what it may be. gina surprisingly is rather impressive too, she is usually found to give anything a go. callum is incredibly serious about passing tasks and seems to always succeed.

[Withano]

Callum & Hazel

[Drew.]

iv been impressed with how Gina and Dexter have just got on with the tasks that have been thrown at them without complaining (most of the time)

[Kate!]

Callum Hazel and Gina.

[Pink Pegasus]

Yes I'd agree with some others here.
In no particular order, Hazel, Gina and Callum are the best at tasks.

[Vanessa]

I think Dexter, Hazel.

[Indy]

Gina and Hazel.

[GiRTh]

Hazel. Who do you think Josy?

[Sophster]

Hazel this week, and Gina with the whole drinking stuff upside down thing.