Ok let me put my 2 cents down in this thread. I'm a full +10 rogue with dual lvl23 +10 axes inspect Highwalker if you don't believe me.
1. The highest DPS you can achieve comes from an axe and sword combination according to the test I've run. What ever you choose to use comes down to what type of rogue you want to be.
2. I classify rogues under 2 categories (Attack/Tank) good for PvP and dungeons (Dodge/High DPS) usually uses daggers good for farming/PvE
3. Arena gear is exactly what it says, gear made for Arena fighting. I used different combination depending on what I'm doing. If you can have PvP and a PvE set and a combination of weapons.
4. Skill set are also preferential also, I used Absolute Reflexes at a max to PvP BD's and I have had good results, there are only a handful of BD'S I can't beat but that's not a lack of skill on my part more to do with BD's skills being bugged. (Like a hamstring that can hit from 10 meters away)
Overall, build your character how it best suits you. There is no perfect set up but go with what you plan on doing more. Those are my 2 cents.
Retired Rogue - Highwalker