General

@cautiouskine: Man I'm so jealous! Everyone around me is getting IA att speed and I'm here just dropping cubes like there's no tomorrow but to no avail.

@kyuubi: I'm in Reboot and I got my IA from unique to legendary in 6 ab circulators and I used 100k honor to get AS +1

Suuuuuuppeeerrr happy with that!

As a fellow pally, I personally wouldn't keep the boss damage. As someone pointed out earlier, you have passives that make it somewhat redundant. I'd go for the attack speed...keep in mind that it can be hard to obtain. I know someone who got it using honor exp rather quickly. In contrast, I know someone who spent well over 400k nx over time until he finally got it.
Best of luck to ya!!

@n0thinspecial: keep the boss damage as it is already great

@peachtime: I already have (20% boss, 28 str, %dex into str). Is it worth to roll for +1 AS? Does buff duration affect blast buff?

@improbable: You're completely correct, I must've been thinking of a different class.

@peachtime: Blast is Final Damage, not % Damage. Paladin has only 57% % Damage with 25% from Advanced Charge and 32% from CO'd Elemental Force not counting Epic Adventure.

@n0thinspecial: Paladins already have high %damage from their skills (105%?), so rolling for IA %boss is inefficient. The other lines are worthless compared to +1 AS.

@peachtime should you re-roll for +1 AS if you have these 3 lines:
20% boss, 28 str, %dex into str - something like this

+1 AS is ideal, especially if you want to hit hard speed cap. The other IAs aren't worth rolling for.