Actually, there is a very quick and easy way to level evasion. This is how you do it:
1. Make sure you have at least 150 Resistance Credits and go to the Bastion Prefect in any of the Scars zones (Abyssea - Attohwa, Abyssea - Misareaux, or Abyssea - Vunkerl) and buy a fanatic's drink.
2. Find a mob in the zone that has a high attack rate and is aggressive (I used chigoes in Attohwa).
3. Flee pull all of the mobs.
4. Once you get a safe distance, use the fanatic's drink and sit there getting hit for 0 dmg and massive skillups (can get anywhere from 8-15 levels of skill for the 3 minutes the drink lasts).
note: if you want to play it safe you could use perfect dodge either during the pull or afterwards to milk all the time from the 3 minute drink
Edited, Apr 4th 2011 12:29pm by EklmForever
This is by far the most effecient way. However, I like to AE burn for key items using them so I was getting skill ups and boss pops.
Pros to that are way more gil/drops.
Cons of course being it works WAY better with a WHM who just spams cure V/VI on you so you go nonstop.