The 'Must SP Reset' Classes of Chaos?

I have a slew of characters here and there on multiple worlds. Most of which I have quit, but i'd hate for any of them to be screwed over due to chaos changes i couldn't keep up with.

However, there's so many of them, that resetting all of them would be a horrible hassle.

Of the following classes, which of these should I seriously consider SP resetting for a Chaos life because the suggest skill build has been changed as a result?

3rd job Dragon Knight (Did anyway since its my current main)
4th job Shadower
4th job Arch Mage (I/L)
2nd Job Brawler
3rd Job Ranger
3rd job Assassin
120 Dawn Knight
3rd job Wild Hunter
3rd Job Battle Mage


Also: Which is easier to earn the Dual Blade Mask from (in personal opinion): A jumpstarted Dual blade from 50, or a Fresh one from Lv 1?

I'd do either the Shadower or AM.

But if you log them at least once you'll get an SP reset that'll expire in three days (if the event is still going on), so you could even do all of them.

Shadowers didn't really get changed that much, just buffed a little bit, but it's hardly noticeable...

The ranger seeing as AR is complete crap now

Thanks for the replies guys~

I forgot about the AR change especially, i better hop 2 it.

Still need to figure out which is easier to earn a mask with... lv 1 DB or lv 50-90.

Thunder Breaker because energy blast is totally worth maxing now.