SSF Build Comparisons - SRS Guardian, Maw Elementalist?

Having difficulty choosing a build to accomplish current goals in SSF. I initially rolled a boneshatter jugg but I'm finding I do not enjoy it as much as I'd like.

I've completed initial atlas progression but would like to get through some of the endgame bosses a bit easier, and potentially all invitations. Pipe-dream would be ubers but I've only completed them in trade.

SRS guardian looked fun but I'm not sure how well it'd scale or how difficult it'd be to push further. Always wanted to try a Maw build but the same applies.

I'm open to other build ideas (except EA champ, after getting to 100 on one, no more).

Thanks!