Not my favorite but certainly not a bad one! TBH I ship them ash, with Gamzee auspisticizing Eridan and Sollux, so I’mma chat about that? Gamzee values his friends, loves them dearly and all, and wants a cohesive environment that he fosters in any way he can (see, the hornpile, offering faygo to anyone regardless of whether or not they asked, etc). Eridan and Sollux are well… uh… yeah. So naturally Gamzee would get upset by their constant infighting and want it to stop, and Eridan and Sollux, while both powerful in their own right, are not actually scary enough to frighten Gamzee away. Eridan’s very SHOWY and Sollux is a depressed lump of antagonism, neither would actually hurt Gamzee, and upon being solicited neither of them would really want to hurt Gamzee’s feelings either, and would therefore allow Gamzee to auspisticize them, even if they’re not gonna be entirely happy about it. Gamzee would be good at hitting that mark of “I care about both of you, so please stop it,” and Eridan and Sollux would be good about “I appreciate that you care about me this much and I care about you too, so I’m going to respect your decision to mediate and allow myself to be mediated.”
As far as pale/flush/pitch EriGam goes, like I said: I like it, but not too much. Gamzee is very spacey and Eridan is someone who requires a lot of attention and emotional upkeep, and I don’t feel that Gamzee would be fit to the task. Meanwhile, Gamzee really needs a partner who will focus on him, instead of just allowing Gamzee to focus on them with his endless eager-to-please-attitude, and Eridan is fairly selfish when he’s not being kept in check (and if they’re moirails, Gamzee would BE the one supposed to keep him in check, so it doubly wouldn’t work out).
I enjoy content with them, sure, but I don’t ship it myself and don’t really see it working out, save in ash, where Gamzee needs to put in effort to keep them apart, certainly effort goes into it, but it’s less a “constant upkeep” thing and more of a “as needed” kind of affection.