Why are most of you using subjective opinions as something more than personal preference?
Here OP. I'll prove your entire point false with one simple statement: I disagree with you. There you're wrong. Why? Because your entire point, along with the majority of other people here is based on personal preference.
Me? I LOVE Darth Baras' helm. I thought he looked intimidating. Me? Don't know what you are talking about Robes, but my Sith Marauder currently wears the stereotypical robes of a Sith, and since it is Custom, I'm still wearing it at lvl 46, despite being an item from under lvl 20.
I LOVE the look of the Champion/Battlemaster PvP gear for Sith Warriors. Darth Marr looks amazing in my honest opinion, and hey, if you got what you wanted, then there would be virtually ZERO variety.
Seriously. This is an mmo. It NEEDS to have item variety. We just can't have every piece of gear being that of what you see from Star Wars films that end no more than 3 hours later.
This issue you speak of OP is PERSONAL PREFERENCE.
If Bioware's Armor Artists took the spikes off the PvP gear, I would personally be displeased. It's what happens in a game like this. Find me one game, ONE where the ENTIRE player community UNANIMOUSLY liked the look of the armor. If you can, then your point is worth arguing. There is no single standard of fashion.