What should I use?

So... I basically have three choices; a tank (in the making), a piety/barrows pure (pker, whatever you want to call it), and a 1 defence pure.

1 Defence pure:




Tank (in the process):




70 Defence piety whatever:




So I'm wondering which I should use for now (I've been getting bored on all of them lately) and what there possibly is to do. For the record, I'm not much of a pker but I do like making accounts for show.
Thanks in advance, any insight is appreciated.

 

Looks like a great starter tank you have there. Maybe you should try switching it up and doing some non-combat skill training, get some 99's.

 

Any recommendations for non-combat 99s to work on?

 

I'd say stick with the barrows pure because it will be good for pking and will be a pretty decent main with the stats that it has right now. It will allow you to play more game content than a pure anyways.