Dataset and datareader, objectdatasource and rowview

Hi,

On a webpage I used a dataset (for a repeater control) with the
objectdatasource.
Caching is done in the bll.
I'm now asking myself: do I still need the objectdatasource???

I have changed the dataset to a datareader.
Now I get problems with the datarowview statements inside my control...
Do I need to change all rowview statements with
DataBinder.Eval(Container."")???

I heard that the datareader is faster then the dataset, correct???
I also heard that the datarowview is faster than the databinder.eval, is the
correct?

I want to use the best solution, please give me some advice.

Thanks!
Arjen