Update: I started leveling up the rhino mostly because it got 1.5x blessing

Now it's level 22 with ridiculously low 1k kills and by now I found a build that I found enjoyable
It's the opposite of defensive build so I guess rhinos weren't made for me

Partly because there are no full PUGs but mostly because I love dealing damage I tried to get a build I can solo with

PVPers: immediately stop reading the following will contain skill builds that will make you sick

To show where I come from on my 22 mage / sand cave farmer I use
6 BoM
6 light
6 fire
1 ice storm
1 drain
1 rev

My strategy is 'no need for defense if you kill them first'

After some respecs my rhino is
6 vital force
6 holy tempest
1 charge
6 redemption
2 rhino might

Spec is (don't laugh) dex/int cause I hate to chug mana and I even consider going int set at 25

Still for my style a mage or bird is much faster but as by now I find my rhino almost enjoyable