Along the lines of more personalization, I'd love to have the ability to wear any item in it's own vanity slot. (Both for SL and PL).

To me some gear looks great, others not so much. It would keep folks guessing more in PvP, and you wouldn't see everyone in the same 'best' gear all the time. This might make load outs more fun too.

I'd suggest charging plat for each vanity slot beyond what's currently free.

I think this would go a long way towards putting more character in your character :-)