For a PFS play, I am planning to prestige my conjurer-specialist Wizard (currently level 5) into the Evangelist of Nethys.

So, level 5 Wizard is

BAB +2, Base Saves +1, +1, +4

But on level 6 the chassis actually get a long-awaited bump to

BAB +3, Base Saves +2, +2, +5

At level 7 these look: Wizard 5/Evangelist 2

BAB +3, Base Saves +1, +2, +4

Wizard 6/Evangelist 1

BAB +3, Base Saves +2, +3, +5

At level 12, each option will have levels of Evangelist on top of it, making them respectively:

Wizard 5/Evangelist 7

BAB +7, Base Saves +3, +5, +6

Wizard 6/Evangelist 6

BAB +7, Base Saves +4, +5, +7

Looks similar, but for the Seeker tier and further on: Wizard 5/Evangelist 8

BAB +8, Base Saves +3, +5, +6

Wizard 6/Evangelist 7

BAB +8, Base Saves +4, +6, +7

And essentially Wiz5+E is just catching up in terms of BAB and saves to Wiz6+E all the way, which is most noticable during first levels of Evangelist.

From an optimization standpoint, which will be a better option: going Evangelist for level 6, or delaying one level to get Wizard's BAB and saves increases? Is BAB+Saves comparable to Evangelist's other features: skill points and class skills, divine boons one level earlier, and so on?

Or is it neglectable to the point of the answer being: "whatever, one BAB earlier or later doesn't make a difference, go with what gives you more fun" (which I probably am going to do).