Elements 9, canon 6D, mac iOS 11 help

1)I have read that dpp workflow is not as efficient as Photoshop or more so Lightroom but that image quality is best being that its canon designed??

Obviously, an integrated workflow with Adobe softwares is an advantage. On the other hand, the difference of quality is mainly dependent on the skills of the user. The Canon software may offer small advantages, like  better 'Canon camera settings' rendering. Not decisive in my case since I can achieve my best result much faster in ACR.

Then I read about workflow efficiency of Adobe bridge.

As far as I know, Bridge has only been bundled with Elements in a single Mac version (8 or 9?)

As I am only a Win user, what I can tell you is that it is possible to install the current version of Bridge bundled with Photoshop CC without subscribing to the Photographers plan. However, Bridge in itself needs either Photoshop or Elements to use the ACR engine: the full one for Photoshop, the limited one in Elements. I don't use Bridge myself, but I understand that users accustomed to Photoshop and Bridge are very happy with the combo. I am partial to the organizer, that true, but it seems to me that someone begining with Elements will find the trio Editor, Organizer and ACR module more homogenous and powerful.

Then I read about workflow efficiency of Adobe bridge.

2)Can bridge be used without ACR but instead DPP?

I don't know... If nobody gives the answer, I'll have a look tomorrow.

Edit:

that seems unlikely; I have not found a way to set an external editor like you can do in the Organizer.