Gmail App or Exchange, which is better?

[jamn424]

Does anyone have any reason to use one or the either?

I'm currently using the Gmail app to sync my gmail contacts/calendar/mail. But using exchange would do the same. So is the only difference the app?

Using Gmail App we can:
1) archive and do many gmail related actions.

Using Stock email client with exchange setting:
1) Quicker?
2) Unread count on the icon.
3) efficient use of battery?

I think the gmail app is a little slower and might drain battery, but dont know.

what do you fellow geeks think? Vote above!