Zero - Which Divine Buff is better for bossing?

Which Divine buff for Zero is better for bossing?
*only listing the stats that matter on the buffs*

Divine Force: 20 Attack and 10% Status/Elemental Resist
Divine Swift: Attack Speed +1, 20 Speed amd 10 Jump.

Alpha's Attack Speed being Normal I believe and Beta being Slow

Yeah I have no idea which one to choose I usually go for red if I don't have to move and blue if I gotta move around. :3

If you lag, don't use Divine Swift.
If you have other weapon speed bonuses, don't use Divine Swift.