Base damage vs multishot on Zarr

[Antecanis]

I got somewhat lucky and rolled a +damage Zarr riven: http://imgur.com/9psNALg.jpg

However, on further rerolls, I got this: https://imgur.com/tQk7T30.jpg

Which would give me a greater benefit? I believe multishot also has the added advantage of more status procs, and there is also a problem of diminishing returns by stacking too much base damage, so is it correct to say the multishot one would be better?

[MrM1]

I came in a little late but I just wanted to say that the multishot one was better for the Zarr.

[Fast_98]

Multishot cause more mini bombs I believe. 

[Cookusmeow]

Multishot=More Bombs=More Mini Bombs=Infinite Explosions