What is the most mobile and enjoyable classes in 5.0 changes

So now that its been out for a few days What is the most mobile class in 5.0?

What class do you find enjoyable with the changes?

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I myself was planning to play RDM again but the changes do not seem eye catching.

I have nearly every class at 70 so swapping to a different class is not an issue to me but it would be great to hear others opinions.